National Rubber produces profiles in all standard and custom designed elastomers and are used in a number of industrial and commercial applications. Our custom profiles are produced to your exact specifications from your print or sample.

Extruded parts are shaped by forcing softened raw materials through a die that is the shape of the desired part. Extrusion is perfect for a vast array of materials and a wide variety of product applications, including seals, custom-sized and large spliced O-rings, weather stripping insulation, gaskets, tubing and cord. National Rubber extruded parts meet FDA, ASTM, NSF, UL, AMS, high temperature and other standards, depending upon the specific application.

Whether your requirements for custom extruded parts are large or small, multi-dimensional or simple, our engineers will help in finding the solution to meet your needs. Our staff of experts enjoys the challenge of devising custom extruded solutions for the most exacting applications.

Our extruded rubber components are commonly used in the automobile, aerospace, appliance, healthcare, food and dairy processing, chemical processing, transportation, electronics and construction industries, among others.

National Rubber specializes in the molding of a wide range of elastomers from organic rubber and engineered synthetic compounds to silicone using a variety of efficient manufacturing processes including compression, transfer, injection, and insert molding for custom products that conform to your design requirements.

Compression molding is the most fundamental method of molding, also very cost-effective and widely used. It involves compressing pre-heated rubber into a mold cavity and holding it until cured. Benefits of compression molding include:

• Produces more complex parts
• Low tooling costs
• Good for high durometer parts
• Rapid production
• Fewer knit lines

Transfer molding also utilizes a press and a mold. However, the process involves forcing the material through small holes into the mold cavity. Benefits of transfer molding include:

• Used for more detailed designs
• High production rates
• Short production cycle
• Reduction in product finishing time

Injection molding is the cost-effective method and is best suited for higher volumes. The process involves feeding the material into a press, where it is cooled or heated as per material compound and injected into the mold. Benefits of injection molding include:

• Consistency
• Highest rate of production
• Parts have little or no flash