Custom Natural Rubber Molding Solution

Zhongren specializes in custom-molded natural rubber components for dynamic sealing, vibration isolation, and cushioning applications. With decades of material experience and manufacturing knowledge, we deliver natural rubber parts that combine flexibility and excellent mechanical strength. Natural rubber molding offers a cost-effective solution with superior elasticity and wear resistance in dry and non-oily environments.

How Are Natural Rubber Parts Manufactured?

Depending on the application and part geometry, Zhongren applies different molding processes to produce high-quality natural rubber components.

  • Natural Rubber Compression Molding
  • Natural Rubber Injection Molding
  • Natural Rubber Transfer Molding

Natural rubber molding requires precise pressure and cure time control to maintain the material’s elasticity and tensile strength. Good mold design and compound consistency are key to achieving repeatable results.

Common Applications of Natural Rubber Parts

Thanks to its outstanding elasticity, tear strength, and dynamic performance, natural rubber is widely used in automotive, industrial, and consumer applications.

  • Suspension bushings
  • Sealing rings and gaskets
  • Shock absorbers and mounts
  • Anti-vibration pads
  • Conveyor belt covers
  • Rubber rollers
  • Foot pads and bumpers

Our Valued-Added Services

Advantages of Natural Rubber Molding

  • Outstanding elasticity and resilience
  • Excellent tensile and tear strength
  • Good abrasion resistance
  • High dynamic fatigue resistance
  • Easy to mold and cost-effective
  • Biodegradable and renewable material source

Disadvantages of Natural Rubber Molding

    • Poor resistance to oils, fuels, and solvents
    • Limited heat, ozone, and UV resistance
    • Aging and cracking in outdoor environments
    • Not suitable for long-term static compression
    • Shorter service life in chemically aggressive settings

FAQ with Natural Rubber Molding

How Does Natural Rubber Compare to Synthetic Rubber?

Natural rubber provides better elasticity and fatigue resistance, while synthetic rubbers (like EPDM or NBR) offer better chemical, heat, and weather resistance.

Not ideal. Natural rubber degrades under sunlight and ozone unless specially compounded with protective additives.

In controlled indoor environments, natural rubber parts can last several years. However, exposure to UV, heat, or oil reduces lifespan.

Other Rubber Materials Molding We Specialize In:

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