A washer is a flat, spherical piece of hardware with a hole in the center that is frequently used to increase tension between a screw or nut and a surface. One such piece of hardware that was created from rubber is a washer. A rubber washer is most frequently employed in situations where a tight seal, with some give in the washer, and exposure to liquids like water or humidity are necessary. Read More…
Leading Manufacturers
RD Rubber Technology Corporation
Santa Fe Springs, CA | 562-941-4800RD Rubber Technology Corp is an ISO 9001:2015 / AS9100:2016 certified and ITAR registered company. We offer compression, transfer, injection and Liquid Injection molding, rubber to metal bonding, engineering support, tooling design, machining and more. Our customers rely on us to give them the best possible production solutions for rubber molding. From aerospace to medical, food processing to military applications we build trust by being responsive to your needs.
Britech Industries
Stuart, FL | 772-286-9278If you have a need custom rubber molding for products with a fast turnaround, Britech Industries is the company you need to call. We do molded, extruded and die cut rubber – of various products and in the colors and compounds you need.
Pierce-Roberts Rubber Co.
Trenton, NJ | 609-394-5245With more than a century of manufacturing experience, Pierce-Roberts Rubber Co. is your source for custom molded rubber products.
Accurate Products, Inc.
Chicago, IL | 800-782-7776Rubber molding is what we do best. We believe in offering our very best to all customers no matter how large or small. For over 65 years we have pushed the boundaries of what we do and continue to improve our products and customer service every day.
REDCO Rubber Engineering & Development Company
Carson City, NV | 800-733-2648REDCO Rubber Engineering & Development is your complete source for rubber molding products, including rubber rollers, die-cut gaskets, and custom rubber products to suit your application.
National Rubber Corp.
Canonsburg, PA | 866-672-8100National Rubber was founded in 1997 with the values of variety, consistency, quality, open communication, and timely delivery at its core.
Mason Rubber Co., Inc.
Trevose, PA | 215-355-3440Mason Rubber is a full-service organization assisting in the designing or reverse engineering of custom product to fulfill your production requirements.
Minnesota Rubber & Plastics
Minneapolis, MN | 1-800-927-1422Minnesota Rubber and Plastics (MRP) is a leader in material compound development and the manufacturing of custom elastomeric and thermoplastic components. With facilities across North America, Europe, and Asia, MRP collaborates with original equipment manufacturers to solve difficult sealing and component challenges across multiple markets. Capabilities include materials science and formulation, fully functional product prototyping, and operational excellence and supply chain consolidation.
Premier Seals Manufacturing
Akron, OH | 877-771-6766With over 30 years of experience in the rubber molding industry, we remain committed to offering the best of our time and energy to all customers no matter how large or small.
Kent Rubber Supply Co.
Grand Rapids, MI | 616-538-4970Kent Rubber Supply leverages our experience, innovation and continuous development to ensure our customers get the best products. We specialize in small to large batch production runs of molded rubber parts, allowing us to offer ultimate customization when it comes to a wide variety of specs. Our products vary in shapes, sizes and wall thicknesses in materials such as PVC and urethane. Both domestic and offshore services are available.
Aero Rubber Company, Inc.
Tinley Park, IL | 800-662-1009Aero Rubber is an ISO 9001:2015-registered, world-class manufacturer of molded rubber products, custom molded rubber and molded rubber goods.
Jet Rubber Company
Rootstown, OH | 330-325-1821Jet Rubber Company, employee-owned, offers custom molded rubber and rubber to metal components. They offer rubber molding in a wide array of standard rubber products as well as custom options for those more complex and difficult jobs.
Device Technologies, Inc.
Southborough, MA | 508-229-2000Spring-Fast Grommets with fusion bonded nylon & a polymer cushion prevent wire chafe & give you best in class performance, 49% install savings & a 9.5x efficiency improvement. The nylon clad metal substrate snaps on with finger pressure & self locks - eliminating adhesives & the old slow & costly gluing process. It is used widely used in across the OEM & contract manufacture sectors. ISO 9001:2015 & AS 9100-D. Collaborative product customization available. Request free samples on site.
A screw or bolt can go through the middle of a rubber washer thanks to the hole in the material. It is possible to pass a larger object through the middle in some circumstances, such as a threaded pipe or conduit. The hole in the center of the washer should be smaller than any nut or other fastener used to secure it, and its overall diameter should be greater than the head of the screw or other hardware component that is inserted through it. The washer will be held in place thanks to this.
How Rubber Washers are Made
Depending on the desired use, compression or injection molding can be used to create rubber washers. The process of injecting molten plastic into a mold chamber that has been properly formed is known as injection molding. A quantity of uncooked rubber material is heated to a liquid state to start the process. When the rubber is molten, it is poured into a hollow that, in the fabrication of rubber washers, has the form of a washer. In the cavity, the rubber fills and shapes itself. The finished rubber washer is then created by allowing it to cool and harden.
The washer can then be made ready for delivery to consumers or, if more processing is required, delivered there. Similar to injection molding, compression molding involves applying pressure to the plastic while it is inside the mold cavity to ensure that it makes contact with all of the mold's curves. Both compression and injection molding are commonly employed, but generally speaking, injection molding is seen to generate more uniform results.
Types of Rubber Washers
The types of rubber washers include:
Silicone Rubber Washers
Silicone washers provide the widest temperature range currently available, withstanding high temperatures (about 150° to 500°F) in dry or humid environments. Additionally, they work with low compression sets and are fungal, UV, and ozone-resistant. Although petroleum oils and ketones don't function well with silicone, braking fluids and high-aniline point oils do.
EPDM Rubber Washers
Rubber washers made of ethylene propylene diene monomer (EPDM) are resistant to weather extremes and temperatures between 60 and 280 degrees Fahrenheit. They are also resistant to ozone, steam, water, alcohols, and braking fluids and have minimal gas permeability. Dielectric properties of EPDM rubber washers offer good protection against electrical currents, ozone, and sunshine. It has great color stability and is heat resistant.
Neoprene Rubber Washers
These washers are highly ozone-resistant, have good oil, petroleum, and solvent resistance, and they weather the elements effectively. They work at a temperature range of 65 to 260 degrees Fahrenheit. They also withstand moderate acids, high-aniline point oils, and Freons. Neoprene rubber performs admirably in all elastomer applications.
Advantages of Using Rubber Washers
- Their water resistance makes them useful and more durable in a variety of applications. Due to this water resistance, they are better than metal washers in many situations because they are not susceptible to condensation's effects.
- Rubber washers provide more flexibility. Rubber washers make it easier to attach fasteners, effectively preventing leakage.
- They are excellent insulators; non-conductive grades are offered for applications requiring electricity. As a result, using them is risk-free and one won't get shocked by electricity.
- They are fluid-resistant and never rust because of this. Users don't need to be concerned about infection or harm.
