Molding Processes
To develop a solution that meets cost, performance, production, or other requirements, we offer six different molding processes.

Rubber Molding

Custom Rubber Parts

An extensive line of rubber parts and engineering services allows Caplugs to meet the needs of our customers in all markets. The goal is to manufacture quality parts, while keeping costs down. Each project is evaluated at the quote stage and hardened tools are used on each project. The Caplugs team has over half a century of experience in the rubber industry and can assist you with the best possible solution. Here are the key capabilities of our operation.

  • Injection, compression and transfer molding
  • 70 presses available – 50, 100, 200, 350 and 500-ton
  • Rubber-bonded-to-metal
  • High precision die-cut products
  • Tool development in the USA with plant involvement
  • Material development and mixing at the plant – EPDM, NR, NBR, SBR, HNBR, CR, IR, FKM & Silicone
  • Certified Lab for testing
  • High precision cryogenic flash removal
  • IATF16949 and ISO14001

Regardless of the challenge, we offer solutions based on our extensive industry expertise and superior customer service and technical support. Our experienced staff will work with you to provide the best recommendations and service for any of your applications. This includes the following services.

  • Product design based on concept envelope
  • Material selection
  • Prototype evaluation and parts in 2 to 3 weeks
  • Compound development
  • Value-added services

Single-Source Solutions

With over three hundred customers and thousands of engineered products Caplugs has become a one stop shop for rubber solutions. These customers in a variety of markets have relied on our many years of experience. These markets include the following.

  • Automotive – door/hood grommets, body plugs, duckbills, suspension, bumpers and seals
  • Aftermarket Automotive – hoses, spark/coil boots, seals and outer body
  • Industrial – Pump seals/grommets, tube plugs, clamp cushions, balls and seals
  • Roofing – EPDM flashing stand pipes, corner supports, seals and grommets
  • Appliance – door grommets, seals, plugs, caps and bumpers
  • Equipment – connectors, pads, handles, seals, grommets and supports
  • HVAC – grommets, caps, plugs, isolators and mounts
  • Rubber to metal – threaded isolators, flapper valves and furniture feet
  • Medical – pulse/oxygen sensors, caps, plugs, stoppers, masks and duckbills

Compound Development and Mixing

We do our own compound mixing for specific material performance attributes and have our in-house chemists test to assure performance and consistency. We are also able to develop custom compounds, as needed, to meet specific performance requirements for your unique application as follows.

  • Custom coloring for market branding
  • Self-lubricated NR and CR for assembly issues
  • UL94 5VA flame resistant EPDM and CR
  • Wear resistant SBR
  • FDA and medical grade Silicone
  • High temperature resistant Silicone with dielectric strength properties
  • FDA grade EPDM

View our standard rubber products