There are two main types of foam rubber molding: open cell and closed cell. Open cell foam products are characterized by their interconnected networks of pores. 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.
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.
Foam Rubber - Pierce-Roberts Rubber Co.Closed cell foam products are the opposite; their pores are not connected, which makes closed cell foam products denser. Both varieties are used in a wide range of applications. Open cell foam rubber molding is used in the automotive industry for seat padding and trim material.
Other kinds of furniture like mattresses and pillows can also be made of open cell foam rubber. In industrial manufacturing, open cell foam rubber can be used in packaging and noise control applications.
Closed cell foam rubber molding is also used in the automotive industry but for thicker products. Construction companies make use of closed cell foam rubber for insulation and other thermal management applications. They are also used in sporting activities as knee and elbow pads, wetsuits and gloves. In healthcare settings, they can be used as orthopedic braces, surgical scrubbers and x-ray positioning pads.
Foam rubber molding is created through a polymerization process. At the beginning of this process, chemicals are placed into two large holding tanks. Then they are pumped into smaller, heated mixing tanks, and from there they are pumped into mixing heads which allow the blending of chemicals to occur.
The manner in which the chemicals are dispensed influences the type of foam rubber formed. For example, the use of continuous dispensing helps to form low-density foams in both rigid and flexible varieties. After the mixing, the foam must be cured before it can withstand further fabrication processes. Foam rubber is typically fabricated through a specialized injection molding process.
In this process, an inert gas such as nitrogen or carbon dioxide is introduced into the heated rubber material. Next, the foamable rubber composition, which now consists of a single phase polymer/gas solution, is then injected into the mold cavity; this allows for shaping of the foam into specific shapes for parts. A more recent development in foam fabrication is structural foam molding.
In this process, instead of utilizing high pressure to force the foam to fill up the mold cavity, the foaming action is instead caused by an inert gas that is distributed in the raw rubber material in order to assist flow.
