Road Tubing

If you drive regularly, chances are you’ve seen some of those small black tubes that often sit across a given roadway, whether on a construction site or in another area. Many of us have a similar question here: What exactly are those tubes, and what do they do?

At Thomas A Caserta, Inc., we’re your one-stop shop when it comes to numerous rubber products, including rubber tubing and cord. What exactly is that road tubing you’ll see, and what are some of its primary purposes? Here are several themes to consider.

What Road Tubing Is

First and foremost, what are we even talking about? Technically, the industry term for these small tubes found on the road that can be driven over is “pneumatic road tubes.”

Essentially, these tubes serve as sensors on the road. They send small bursts of air pressure along the tubing whenever a vehicle passes over them, which is then received and analyzed by a computer. This data can then be used to help determine traffic flow patterns, average speeds, and more.

This type of road tubing has become increasingly popular in recent years as a relatively low-cost way to collect data on traffic patterns. It will often be found in construction zones, as a way to help officials determine if the work being done is having an impact on traffic patterns (and, if so, what that impact is).

Primary Road Tubing Purposes

Here’s a rundown of the most common ways these road tubing products are used:

  • Traffic patterns: As we just touched on, one of the primary uses of road tubing is to help officials determine traffic patterns. This data can be used to make decisions on everything from traffic light timing to construction schedules.
  • Speeding: Road tubing can also be used to help enforce speed limits. Data collected by the tubes can be used to pinpoint areas where speeding is a problem, which can then be targeted by law enforcement.
  • Traffic counts: Road tubing can also be used to simply count the number of vehicles that pass over a given stretch of road. This data can be useful for planning purposes (for example, if a city is considering adding a new traffic light or stop sign).
  • Vehicle types or class: If two or more tubes are set up in close proximity to one another, they can be used for even more advanced data collection, such as determining the types or classes of vehicles that are using a given road. This data can be used for everything from marketing research to traffic planning.

As you can see, there are a variety of ways road tubing products can be used. If you’re in need of high-quality rubber tubing or cord, look no further than our team at Thomas A Caserta, Inc. Contact us today for more information on these or related materials!

What is EPDM Rubber?

EPDM is a versatile synthetic rubber that manufacturers use to produce highly durable components for use in commercial and industrial applications. Its desirable properties make it a popular option across various industries, ranging from construction and appliances to aerospace, automotive, and more.

Ethylene propylene diene monomer (EPDM) rubber is a popular M-Class rubber under standard D-1418 established by ASTM. The propylene base has been polymerized to reduce its structure to semi-crystalline, giving it enhanced elasticity and flexibility. Because of its synthetic polymer composition, EPDM rubber is more durable than natural rubbers, neoprene, and SBR options for applications that involve exposure to heat, sunlight, or ozone. Manufacturers can also enhance EPDM rubber’s resistance to temperature damage, further extending its lifespan in critical exterior applications.

EPDM is electrically insulative and compatible with alkalis, water, and ketones. However, it is incompatible with oils, halogenated solvents, and many other chemicals.

What Is EPDM Rubber Used For?

Because of its strong positive characteristics, EPDM rubber is a popular choice for fabricating a wide range of components. Its elasticity and soft, flexible structure make it an excellent choice for components that need to bend to create a leak-proof seal. Some of the most common uses for EPDM rubber include:

  • Seals
  • Gaskets
  • Diaphragm components
  • Membranes
  • Weatherstripping
  • Hoses
  • O-rings
  • Slip-resistant coatings on walking surfaces, playgrounds, and more

Many of these components and use cases can be found across every industry, making EPDM rubber the go-to material for any manufacturing project that needs to produce durable, flexible, and reliable components.

Industries That Use EPDM Rubber

At Thomas A. Caserta, we’ve been producing high-performance rubber parts and components for over 70 years. We’re a leading provider of precision engineering services, and we’re committed to providing quality at an affordable price. We serve clients across diverse markets with EPDM washers, gaskets, bushings, tubing, and more. Some of the industries we serve include:


Our EPDM rubber components can be used in heavy-duty highway equipment and drilling equipment.


We can produce custom EPDM components for lightweight assemblies and leak-proof seals in avionic and aeronautic vehicles.


We produce EPDM gaskets, seals, and more for use in consumer appliances and equipment.


Some of the most common applications for EPDM rubber components in automotive manufacturing include shock absorber mountings that absorb the force from movement and rattling to protect components in the assembly. Our EPDM rubber components also include gear shift components, rubber parts in suspension systems, and specialty components for internal combustion engines.

Sealing Applications

EPDM rubber is particularly well-suited for sealing applications because it can easily be used to fabricate components with custom profiles and dimensions. The rubber is also resistant to water and can flex to create a reliable, long-term seal, even in exterior applications and extreme environments. EPDM rubber seals can be used alongside pipes, tubes, and wires.

The following industries also rely on EPDM rubber components:

  • Electrical
  • Fastening
  • OEMs
  • Plumbing
  • Skateboards and bikes

How Strong Is EPDM Rubber?

EPDM rubber is strong enough to resist damage from sunlight, ozone, and other environmental factors. It also has excellent heat resistance and tear resistance.

How Long Does EPDM Rubber Last?

EPDM rubber roof membranes have a long lifespan of over 50 years because of their chemical stability and resistance to damage from the elements. EPDM rubber can also be used to produce long-lasting seals and gaskets that last for years. The durability, stability, and flexibility of EPDM ensure a long service life; however, exposure to certain oils and solvents can cause degradation.

Choose Caserta for Precision EPDM Rubber Components

At Thomas A. Caserta, we’re a leading provider of high-quality custom rubber components. All of our products are made in the United States as part of our commitment to quality and speed. Contact us today to learn more about EPDM capabilities or to get started on your rubber component solution.

Benefits of Working with an American Manufacturer

American manufacturing has a long, proud history. In recent years, more companies are coming to understand the benefits of working with an American manufacturer, and they’ve turned away from offshore operations to take advantage of domestic high-quality products. By purchasing American-made and manufactured parts like rubber washers, gaskets, silicone tubing, and more, you reduce your shipping costs, speed up turnaround times, receive better quality, and support local communities all at the same time.

These are a few of the many benefits of doing business with an American manufacturer.

Quicker Turnaround Times

Offshore products must travel farther distances to reach their destination, lengthening lead times to months. Overseas shipments are also subject to global supply chain issues and other unexpected delays. When you order parts from an American manufacturer, your products don’t have to travel as far, taking only days or weeks to arrive. This is crucial in the modern e-commerce market, where consumers increasingly expect online orders to arrive quickly.

Higher Quality Products

Natural rubber manufacturers based in the United States are subject to American laws and manufacturing regulations. This includes higher safety standards for workers and environmental regulations to help companies reduce their carbon footprint. Furthermore, domestic manufacturing allows companies to oversee production directly and ensure stringent quality control measures. To achieve these high standards of excellence, U.S. manufacturers invest in high-quality equipment and extensive training for their employees.

Reduced Delivery Cost

Because your products don’t have to travel as far, the cost of delivery is much lower. Unlike overseas shipping, domestic shipping offers more options, so you can shop around to secure the lowest delivery cost while avoiding the customs fees and international taxes associated with purchasing from an offshore manufacturer. With no language barrier or cultural differences to navigate, you also reduce the risk of miscommunication and shipping or production errors.

More American Jobs

The ripple effect of buying American-made products is profound. You would be supporting the companies that provide jobs for people in this country. Local manufacturers often source materials locally as well, which creates a strong network of businesses that support American workers and their families across industries. As these communities develop more spending power, they also buy from other local businesses, supporting job creation in retail, transportation, distribution, technology, and more. As a result, American manufacturing stimulates local and national economic growth.

U.S. Manufacturers Pay U.S. Taxes

Offshore manufacturers often avoid paying certain U.S. taxes, which was part of the appeal of offshoring operations. But with overseas shipping costs skyrocketing, this is becoming less of a draw for manufacturers. Reshoring production is proving more fruitful, since paying U.S. taxes serves their community and country in a variety of ways, including improved infrastructure, education, and social programs.

Consumers Trust the “Made in U.S.A.” Stamp

U.S. consumers tend to trust products that are made in their home country, and a “Made in U.S.A.” stamp can be the selling point that encourages them to choose that product over another. The popular perception that American-made products are of a higher quality than foreign-made goods is accurate. As Americans become more aware of the social and environmental impact of their choices, they increasingly prefer to buy products from companies that prioritize safety and respect for their workers, reduce their carbon footprint, and give back to local communities.

The Advantage of Working with Thomas A. Caserta, Inc.

For over 50 years, Thomas A. Caserta, Inc. has been a trusted custom rubber manufacturer. We create high-quality rubber washers, bushings, gaskets, tubing, and cords for diverse and demanding industries all over the world. We work with a variety of materials, including EPDM, nitrile, SBR, silicone, neoprene, and more.

Headquartered in Robbinsville, N.J., we’re proud to produce all our parts in the United States. We offer competitive prices and outstanding customer service to ensure your complete satisfaction. Contact us to see how we can serve you or to learn more about the benefits of working with an American rubber parts manufacturer.

Common Aerospace Applications for Rubber Seals & Spacers

Rubber is a very effective sealing solution for various industries, especially the aerospace industry. Rubber is frequently chosen for sealing due to its numerous advantageous properties. It is a strong material that maintains flexibility and optimal performance even in extremely high and low temperatures, which is essential to the aerospace industry.

Rubber has additional benefits, such as low chemical reactivity; low outgassing; and resistance to acids, bases, water, oil, and fungus. Additionally, rubber is easy to mold into various shapes and provides excellent insulation for electrical components. Throughout the aerospace industry, rubber seals are found in many applications, from engines and windows to the cockpit and cabin.

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Top 5 Uses of Rubber Seals in the Aerospace Industry

Rubber seals and spacers are used widely throughout the aerospace industry in applications relating to both space exploration and aviation. Rubber extrusions, such as O-rings, are used in connectors and bleed air valves. Rubber is also used to produce T-seals; hatch seals and covers; tubing; as well as protective boots, bellows, and many other components. Let’s take a look at the top 5 applications for rubber seals in the aerospace industry.

Thermal Insulation and Protection

The aerospace industry requires equipment to function correctly at high altitudes, where temperature decreases significantly. In these challenging environments, rubber seals are a critical solution as they offer reliable protection and thermal insulation. During atmospheric reentry, high levels of friction occur which creates extremely high temperatures on the surface of the vehicle. Rubber seals can withstand these extreme temperatures, protecting inside passengers.

In the aviation industry, aircraft systems rely on pneumatics and hydraulics to operate components such as landing gear and wing flaps. These systems require rubber gaskets to keep out dirt and air and ensure aircraft components function correctly. Rubber is an optimal material for applications that require a compressible gasket.

Interior Components

Normal aircraft operation creates a significant level of noise and vibrations that could disturb passengers. When used on internal components, rubber seals provide a more comfortable and safe environment by significantly reducing these sounds and vibration levels. Rubber seals can be used on many interior components, from hatches to gaskets for LED lighting systems.


Rubber seals are found in HVAC seals, gaskets, and vent ducts throughout aircraft to provide ventilation. In commercial and military aviation, rubber seals are used to keep air from escaping the aircraft through gaps around windows and doors. This ensures that cabin pressure and oxygen levels remain stable and at appropriate levels.

Engine Components

Rubber seals’ high heat and corrosion resistance make them optimally suited for several engine-related applications. They are frequently found in several engine components, such as gaskets, to support the engine when it experiences high temperatures during lift-off. They also provide shock absorption and improve aircraft safety while reducing maintenance costs.

Additionally, aerospace turbine engine shaft seals function by sealing the main shaft bearing compartment and oil sump to ensure correct operation. Seals around aircraft firewalls are an essential aspect of the engine compartment. To protect passengers from an engine fire, a sturdy fireproof barrier is needed between the engine and the cockpit, and rubber seals are an important component of this barrier.

General Mission Critical Equipment

Throughout mission-critical systems, rubber seals’ fire-retardant and grounding capabilities make it an excellent choice to protect vital electronic components. Rubber seals are used to keep out environmental contaminants and are also used throughout motion control, communication, and navigation systems. Rubber seals can be used to seal instrument panels and other electrical systems in the cockpit. This helps protect printed circuit boards from the risks associated with extreme altitude.

Rubber Seals & Spaces from Thomas A. Caserta, Inc.

Lightweight but highly durable, rubber is a frequently chosen material for aerospace applications due to its reliable performance in challenging environments. Thomas A. Caserta, Inc. understands the unique needs of the aerospace industry and has been manufacturing high-quality rubber products for over 70 years. We are highly experienced at producing rubber seals and spacers with the level of precision that the aerospace industry requires. All of our products can be manufactured to precise specifications and are carefully crafted in the USA. To learn more about our products and services, contact us today.

An Intro to Rubber Spacers for Holsters

Rubber washers are important components of many devices and systems. They are used for a variety of purposes.

For example, in holsters, they are commonly utilized as small spacers between other parts in the assembly. Below, we go more in-depth on this use case.

The Importance of Holsters

Among gun owners, holsters are the second most important piece of equipment. While the primary function of these devices is to house and hold the firearm, they can serve other purposes, such as:

  • Concealing the firearm. When you don’t want to advertise your firearm or are in a state without open carry laws, a holster is essential. Shoulder holsters or waistband holsters allow you to conceal the gun under a jacket.
  • Providing convenient access to the firearm. If you are going to carry a firearm, it needs to be convenient and accessible. A holster allows you to keep it close to you but easily reachable when you need quick access.
  • Ensuring firearm safety. A key concern with firearms is safety. Keeping your firearm in a holster prevents accidental firing or unauthorized access outside of a gun safe.
  • Reducing load needs. A holster provides a safe place to secure a loaded gun, eliminating the need to store ammo separately and load the gun before you use it.
  • Improving user comfort. Using a holster to carry your firearm is much more comfortable than carrying it in your waistband or pocket.

How Are Rubber Spacers Used in Holsters?

Many people overlook spacers when thinking about the components used in holsters. Since they do not have a visual impact, they are often forgotten. However, they have a significant impact on the performance of the holster. For example:

  • They give the holster the proper hardness balance and spacing between components needed to ensure the firearm is secure when reholstered.
  • They provide the right amount of clearance between the holster and mounting hardware to ensure they do not interfere with each other’s performance.
  • They increase the distance between the holster and the wearer’s body to improve access when wearing protective apparel or equipment.

Types of Spacers Used in Holsters

The three main types of rubber discs integrated into holsters are:

  • Black rubber spacers
  • 2-hole spacers
  • Rubber O-rings

High-Quality Rubber Washers From Thomas A. Caserta

Rubber spacers are a vital component of firearm holsters. They greatly improve the functionality of the devices, ensuring they work reliably and fit comfortably.

Looking for a supplier of rubber spacers for your holster manufacturing operations? Thomas A. Caserta is the ideal partner. Equipped with over 70 years of experience manufacturing rubber washers for various customer needs, we have what it takes to deliver high-quality products that suit your exact requirements and restrictions. We offer stock and custom washers in a variety of rubber materials, including neoprene, EPDM, Viton®, nitrile, SBR, and silicone. All of our washers are made in the USA, so you can trust them for your most critical applications.

To learn more about our rubber washer products and services or discuss your holster washer needs with one of our representatives, contact us today.

Rubber Components Made in the USA

Common Applications of Rubber Seals in the Electrical Industry

Rubber seals are used throughout the electrical industry because of the reliable protection they provide. Rubber materials feature excellent electrical insulation capabilities, making them useful for preventing the dangerous effects caused by electricity transferring to other objects. Rubber slows down electrons, making it the most natural and efficient insulator in the world.

This allows manufacturers to create compact electrical or electronic components with no risk of electricity transfer. Rubber electrical insulators are used for a variety of reasons, including:

  • Energy Efficiency. Rubber seals ensure electricity doesn’t dissipate or transfer outside of the required pathway, allowing for more efficient performance.
  • Environmental Protection. Rubber seals mitigate pollution emissions.
  • Safety. Rubber seals contain electricity in an electrical circuit. They can even contain high-voltage electricity to protect nearby people and environments from shock hazards.
  • Soundproofing and vibration prevention. Rubber seals can dampen sound and vibration to reduce or eliminate noise, shaking, and disruption.

Rubber can perform all of these functions because of its many advantageous mechanical properties including elasticity, flexibility, friction, a high degree of strength and resistance to physical damage, and the ability to create an airtight and watertight seal.

Common Applications for Rubber Insulators

Rubber Washers & Gaskets for the Electrical Industry

The core advantage of rubber seals is that rubber is a powerful insulator. The materials bind and prevent the flow of electricity, even at a high voltage level, to stop potential conduction and shock hazards. Rubber insulator seals are used throughout the electrical industry for a wide range of products. Nearly every device or electrical installation will have insulative seals to protect both the system and the surrounding area. Some of the most popular applications include:

  • Circuit boards
  • Coating cables
  • Coating electric poles
  • Coating electrical wires
  • Heavy-duty switchgear components
  • High-voltage appliances and machinery

Because rubber seals can handle such a diverse array of applications and voltage levels in different environments, they’ve become increasingly specialized. It’s important to choose insulator seals with the right materials and shape to guarantee optimal performance.

Two key types of rubber seals are rubber gaskets and rubber washers.

Rubber Gaskets

Rubber gaskets are seals that provide both electrical insulation and environmental sealing to keep dust, debris, and moisture away from sensitive electrical parts. These protective gaskets are often used to line doorways, removable front panels, and electrical access panels. They are also commonly used in cabinet-like enclosures that contain equipment or machinery, such as a generator.

Rubber gaskets fully seal the gap between the panel and the housing. Not only do gaskets provide reliable weatherproofing and protection from the elements, but they can also resist flames or chemicals to protect the contents from hazardous environments. Rubber gaskets also provide excellent acoustic insulation, making them suitable for applications that require vibration dampers or sound absorbers.

Rubber Washers

Rubber washers often sit between a fastener and the body of an electrical component. They provide a soft, slightly compressible seal to stop two metal parts from biting into each other or causing wear. Washers also insulate the fasteners from electricity and prevent environmental hazards like moisture, dust, and dirt from entering the system through the fastening point. Rubber washers can act as seals, bumpers, spacers, and electrical insulators for a wide range of fasteners, including:

  • Rivets
  • Screws
  • Wire clamps or clips
  • And more

Any large-scale machinery and appliances, such as HVAC units, electrical equipment, and industrial systems, will include rubber washers to extend the lifespan of the system. They can even be found in smaller appliances, such as electric motors and consumer appliances.

Both rubber gaskets and rubber washers come in a wide variety of options. When choosing a rubber product for your specific application, it is crucial to select the right size and material to ensure optimal performance. Before you finalize your purchase, always check with the manufacturer’s guide or datasheet to ensure the product is rated for use with your required power levels.

Choose High-Quality Rubber Seals From Thomas A. Caserta

Rubber Washer Experts in the USA

At Thomas A. Caserta, we specialize in creating safe, reliable rubber gaskets and washers. We have been manufacturing rubber gaskets and washers for a wide range of applications for over 70 years. Whether you need a stock or custom-designed product, we can work with you to deliver a rubber solution that fits your needs. To learn more about our rubber product offerings, browse our selection of rubber seals or contact us today.

The Use of Rubber & Silicone Seals in the Construction Industry

The construction industry relies on well-made rubber and silicone seals for the completion of many types of projects. These seals serve many purposes, such as providing protection from shock, binding materials together, and protecting structures from moisture damage. The usage of rubber seals comes with several significant benefits, making it one of the most popular industry choices for ensuring a watertight and airtight fit.

High-quality rubber seals are durable and easy to install. They can protect structures from heat and environmental pollutants while standing up well to daily wear and tear. Within construction applications, silicone rubber products are a popular choice as their adhesive quality allows them to be easily bonded with many widely used materials, such as glass, metal, concrete, plastics, and more.

Applications of Rubber Seals in the Construction Industry

Typically, applications for rubber seals within the construction industry involve outdoor weather conditions, UV rays, and the potential for extreme temperatures. Due to this fact, it’s essential that they be made from durable, high-performance materials. Some of the most common applications for rubber seals within the construction industry are:

  • Skylight and window seals
  • Edge trim and guards
  • Glazing seals
  • Expansion joints
  • Bumpers
  • HVAC seals
  • Air duct insulation
  • Vibration dampening

These applications require different types of rubber seals. There are three main types to be aware of: rubber washers or spacers, rubber gaskets, and rubber bushings. These products might seem similar, but they each have unique characteristics that make them best suited for differing applications.

Rubber Seals & Spacers for the Construction Industry

Rubber Spacers and Washers

Rubber spacers are very useful with machinery that has moving parts. Spacers can be used to ensure a uniform distance is maintained between different parts of a machine. Washers and rubber ring spacers within the construction industry are most commonly used to support threaded fasteners.

Rubber Gaskets

The construction industry frequently uses rubber gaskets in HVAC systems and doors due to their excellent ability to stop air and liquid leakage.

Rubber Bushings

Rubber bushings are ideal for the construction industry because they are very flexible and easy to install. They are most commonly used in highway and drilling equipment.

Considerations When Selecting Rubber Seals for the Construction Industry

Rubber Washer Experts in the USA

Rubber and silicone seals offer quality solutions for the construction industry. When choosing the type of seal for your applications, there are many factors to consider to ensure your select the right option. Making the wrong choice can lead to costly defects, poor performance, and potentially serious injuries. Common questions you should ask when choosing a seal include:

  • How much pressure will the seal need to withstand?
  • What is the seal’s application?
  • What weather conditions will the seal be used in?
  • What temperature will the seal be exposed to?
  • What chemicals will the seal be exposed to?

The answers to these questions will ensure that you select a seal type and material that will function well for the needs of your specific application.

Industrial Rubber Products from Thomas A. Caserta, Inc.

There are many applications for rubber seals within the construction industry. Due to their high degree of durability and watertight and airtight fit, they provide a long-lasting solution for many uses.

Thomas A. Caserta, Inc. has been providing custom-manufactured rubber products since 1948. Our experts use the newest equipment along with a variety of rubber materials to deliver top-of-the-line products at a competitive price. To learn more about how we can meet the needs of your specific application, you can request information here.

How the Fastening Industry Utilizes Rubber Washers & Seals

Conventional fasteners—which include bolts, rivets, nuts, and screws— can efficiently mount a number of items to surfaces or surfaces to each other. In certain industrial applications, however, regular fastening isn’t enough to prevent unwanted and unintentional flow of potentially damaging gases and liquids.

When used in conjunction or fused with a rubber product like a rubber washer or rubber gasket, fasteners form a much more effective seal against all kinds of external contaminants.

Rubber Products and Their Benefits

At Thomas A. Caserta, we provide high-quality rubber hardware for a broad spectrum of fastening applications. Available in a variety of designs and configurations, rubber fastener components work well in conjunction with metal fasteners to create reliable, durable seals. The most popular rubber fasteners include washers, spacers, gaskets, and bushings.

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Rubber washers are round, flat discs with a hole in the middle, which allows fastening components such as washer screws to pass through the center. Manufacturers use screws with rubber washers distribute the force of the screw head, which keeps the screw head from digging into surfaces and creating damage. They can also be used to dampen vibrations and prevent air or fluid leaks around the fastener. Rubber washers for screws come in a wide range of materials, thicknesses, and diameters to meet the needs of particular applications.


Spacers are also round rubber discs with holes, similar to washers, although they are often thicker. Spacers are designed to separate two parts or objects by a specific distance. Rubber spacers for bolts are especially useful for securing fasteners in high-vibration applications because the rubber will absorb the vibration to keep the fastener from loosening unexpectedly.


Gaskets are available in a variety of shapes and thicknesses and are often used with metal screws to create a tight seal between two parts. Rubber gasket screws are metal screws that come with the rubber gasket already affixed, allowing users to easily fasten components together while establishing a physical barrier against the intrusion of air, fluids, particulate matter, and electromagnetic interference. They also help to keep parts from creeping or extruding in extreme operating conditions.


Industrial rubber bushings isolate vibration between components to minimize wear. The rubber bushing absorbs the vibration energy produced by the interaction of the attached components, ensuring smoother operation and reduced friction between components.

Benefits of Using Rubber Components in the Fastening Industry

Rubber components offer a variety of benefits over more traditional metal fasteners. Some of the primary advantages of using rubber hardware include:

  • Added flexibility. Rubber is more flexible than traditional metal components, which provides a more secure fit with less potential for leakage and creep.
  • Broader load distribution. Rubber washers help to distribute pressure from fastener loads, which reduces the potential for damage to surrounding surfaces.
  • Reliable and accurate spacing. Rubber washers and spacers help to establish a reliable amount of space between components, ensuring optimal operation and preventing unwanted contact between components.
  • Vibration absorption. Rubber hardware helps to absorb vibration, reducing the potential for wear, creep, and displacement.
  • Sealing protection. Flexible rubber gaskets seal components to prevent fluid and other substances from leaking. They are available in a variety of materials that can withstand corrosive chemicals, extreme temperatures, and other harsh operating conditions.
  • Surface protection. The flexibility and load distribution properties of rubber washers help to prevent surface damage and corrosion, which helps to mitigate the risk of equipment damage, cross contamination, and inefficient processes.
  • Enhanced stability. Rubber fastening hardware can be manufactured in a variety of shapes, sizes, and configurations to ensure a stable, dependable fastening solution with a reliable seal and low creep potential.

When to Use Rubber Hardware? fastening industry

From rubber bolts and rubber washers to sealing gaskets and industrial rubber bushings, fastening hardware is critical to a wide range of industries and applications. Examples include:

  • Aircraft engines and motors (fastenings for fuel pumps, satellites, and robotic equipment)
  • Circuit boards (insulate connections, mitigate vibration)
  • Conveyor belts (seal process machinery, prevent leaks, and reduce vibration)
  • Home appliances (seal doors, prevent process fluid leaks, reduce vibration)
  • Electric-charging vehicle units (protect from fluid leaks, unwanted electrical flow)
  • HVAC systems (seal process fluids, prevent intrusion of unwanted materials into the system)
  • Medical equipment (facilitate reliable operation of medical assistive devices and equipment)
  • Sensors (keep air and fluid pressure consistent, prevent the intrusion of unwanted materials)

Custom Rubber Components from Thomas A. Caserta

Made in the USA Rubber Products

Rubber washers and gaskets are essential in the fastening industry when they are used with traditional fasteners like nuts, bolts, and screws; the rubber components provide extra sealing protection against the environment and foreign substances. This can save equipment from excessive damage and expensive repairs, maximize productivity, and minimize operational downtime.

Thomas A. Caserta, Inc. manufactures quality rubber products for diverse and demanding industries. With more than 50 years of experience, we can design our rubber products to any specification to ensure they are the right fit for your needs. We also utilize the latest equipment that produces high-quality parts at competitive prices and quick turnaround times. Regardless of how big or small your job is, we can meet your needs. Our skilled and dedicated team strives to fulfill our number one goal: customer satisfaction. Contact us to request your custom rubber product quote today!

Rubber Seals in the Automotive Industry

The automotive industry relies on an expansive range of parts and components to build the critical systems and support infrastructure that come together to make a completed automobile. These integrated systems must reliably withstand the effects of motion and vibration from driving surfaces, the engine, and other factors. Rubber seals and gaskets provide cushioning and firm seals to prevent liquids and gases from leaking. Rubber sealing solutions are found throughout vehicle systems, from the engine and transmission to the doors and windows.

Automotive rubber seals must be tear-resistant, non-flammable, flexible, durable, and able to stand up to high speeds, extreme temperatures, and intense pressure. Automotive rubber components minimize rotational or translational movements between two joined parts to prevent fluids from leaking out or gases from seeping into the passenger cabin. Using high-quality seals ensures each part operates efficiently and independently.

Different Types of Automotive Seals

Automotive gasket manufacturers produce several types of rubber seals, including:

  • Rubber washers. These flat rubber rings have an open center that allows fluid to pass through the connected parts. They provide a tight, non-abrasive seal in pipe and hose fittings to protects against leaks, vibration, and electrical charges.
  • Rubber gaskets. Gaskets are cut into various shapes and sizes from large sheets of rubber, which makes them highly customizable to meet the needs of specific fittings. They are widely used in the automotive industry to prevent leakage between connected parts due to their durability, color stability, temperature resistance, and general affordability.
  • Rubber bushings. Bushings absorb shock, minimize vibration, resist abrasion, and minimize or eliminate the need for lubrication between components. They are flexible and easy to use for parts like gear sticks, internal combustion, and suspension systems.
  • Silicone rubber tubing. Silicone tubing is a highly versatile product that resists frequent or continuous exposure to weather, UV radiation, heat, and ozone. This type of tubing sees extensive use in the automotive industry as an insulator for electrical cables and wires.

Applications of Rubber Seals in the Automotive Industry

rubber seals in car systemsAutomotive rubber products play an important role in many applications in the automotive industry. Their primary uses in mechanical equipment include filling gaps between components, minimizing damage from vibration, preventing the leakage of liquids or gases, or hindering contamination from moisture or dirt.

However, various applications require different types of protection. Now that we’ve identified the differences between the various types of automotive rubber solutions, let’s look at some applications that use them:

  • Cooling system gaskets. These gaskets seal components within the system to prevent the coolant from leaking out.
  • Differential seals and gaskets. Highly flexible differential seals and gaskets are attached to the transmission axle to protect it from dirt, grime, and other contaminants that could damage the transmission.
  • Electrical junction boxes/fuse boxes. Electrical seals stop moisture and dirt from getting into the electrical system where they could cause sparks, fires, shorts, or other malfunctions.
  • Engine seals and gaskets. These seals and gaskets absorb excess heat and compression while ensuring that oil, fluids, or coolant don’t leak into or out of the engine compartment.
  • Fuel supply gaskets. Placed in between the fuel pump mounting surface and the fuel pump space, fuel supply gaskets maintain pressure within the engine compartment.
  • Transmission seals. Transmission seals and gaskets are used in internal and external transmission components to create pressure-tight connections in accumulators, servos, clutch packs, and transmission axle cases.
  • Windshields. The seals and gaskets used around windshields are an important factor in safety and comfort, maintaining air quality, cushioning the windshield against flexing movements, and protecting the occupants from wind, water, and noise.

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Thomas A. Caserta is a premier global supplier of high-quality rubber seals to a diverse range of demanding industries. For decades, our customers have depended on our ability to design and supply prototypes or production parts with fast turnarounds, regardless of project size. Our products come in a variety of rubber materials, such as EPDM, SBR, nitrile, neoprene, silicone, and Viton. We offer a broad portfolio of rubber seals for the highly competitive automotive industry, including:

Please contact us to see how our automotive rubber solutions can benefit your operation.

How to Design the Right Gasket

Gaskets are mechanical seals used to fill the gap between two mated components. When designed, constructed, and installed correctly, they prevent process fluids from escaping and contaminants from entering sensitive equipment. As these sealing materials play a critical role in many fluid handling and processing operations, industry professionals follow strict guidelines dictating how to design, construct, and install them properly.

In the following article, we cover some of the considerations regarding the design of rubber gasket seals.

Key Design Considerations for Gaskets

The installation of the wrong gasket can result in leaks, damage, and other issues in a fluid system. It can also cause the premature wear and failure of the gasket, which translates to frequent investment in gasket repair and replacement operations. With these consequences in mind, it is important to use the right gasket for the given application. Below we outline some of the factors to consider when designing a gasket to ensure it functions as intended.

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Construction Material

The construction material chosen largely determines how the gasket will perform. As such, it is essential to consider what qualities are expected of the finished gasket and what materials fit these requirements. When vetting potential material options, some of the properties to keep in mind include:

  • Density: the material’s mass per volume (lbs./ft.3)
  • Hardness: the material’s ability to resist plastic deformation resulting from indentation, penetration, and other mechanical forces
  • Elasticity: the material’s ability to return to its shape and size after experiencing deformative forces

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These properties are critical to the sealing performance of the gasket. However, the levels required depend on the system in which the gasket will be installed. For example, sponge rubber (both open-cell and closed-cell) generally exhibits lower density and better elasticity than solid rubber, which makes it suitable for some—but not all—applications. It may be helpful to acquire samples of materials to determine which one best fits a given system.

Some of the most common materials used in the manufacture of gaskets are:

  • Silicone: Silicone is a highly versatile and resilient material that is available in solid, foam, and sponge variations. It does not react with or deteriorate when exposed to many chemical substances. It is often used for gaskets due to its ability to form a tight seal, remain flexible in high or low temperatures, and resist water, shrinking, and UV and ozone damage.
  • Neoprene: Neoprene is a synthetic rubber compound that exhibits good durability, resisting damage and degradation stemming from exposure to UV radiation, ozone, chemical and corrosive compounds, and oils and other petroleum-based products. It also remains flexible in temperatures as high as 120° C and as low as -40° C.
  • Nitrile: Nitrile is a synthetic rubber that finds use in a wide range of applications. However, it is particularly suitable for environments exposed to grease, oil, and water.

Gasket Design

The design of a gasket depends on the system in which it will be installed. Tailoring the gasket to fit snugly between the mated components is essential; otherwise, it will not function as intended. The design elements to consider include:

  • Shape: the geometric form of the gasket (from the face)
  • Cross-section: the geometric form of the gasket (from the profile)
  • Thickness: the distance between the gasket’s faces

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Application Environment

The operating and environmental conditions to which the gasket will be subjected affect what construction materials and gasket designs are appropriate. When determining the above two factors, it is critical to keep in mind the following:

  • What temperature ranges are expected?
  • What operating pressures ranges are expected?
  • What chemicals will the gasket be exposed to during operations and maintenance services?

The above list of questions is not all-inclusive. There are many other operating and environmental factors that can affect a gasket’s performance. Partnering with an experienced and knowledgeable gasket supplier can help determine which gasket materials and designs are suitable for a particular application.

Get Your Custom Made Gaskets From the Experts at Thomas A. Caserta

At Thomas A. Caserta, we’ve provided precision engineered rubber products—including gaskets—for over 70 years. Equipped with extensive industry experience and quality materials, our team has the knowledge, skills, and tools to design and manufacture custom rubber gaskets for any industrial application. To learn more about our gasket making capabilities or partner with us for your molded gasket needs, request a quote today.

How To Design The Right Gasket