polyisoprene natural rubber part samplesThe Custom Polyisporene Natural Rubber Molding Experts

Chemical Designation: Natural Polyisoprene (NR)

Molded polyisoprene natural rubber is best used in applications that require high pliability, tensile strength and tear resistance. A good choice for applications where product exposure includes acids, organic salts and alkalis. In addition, Natural Rubber is soft and has good flexing characteristics at low temperatures. It is wear resistant and non-toxic.

Do not use Polyisoprene Natural Rubber for outdoor applications where resistance to sunlight, oxygen or heat aging is an issue. Do not use this product for applications that involve petroleum derivatives or exposure to chemicals.

  • Good sealing properties
  • Resistant to electrolyte solvents
  • Low compression set

What is Natural Rubber?

Natural rubber, also known as polyisoprene natural rubber, consists of polymers of the compound isoprene as well as impurities from other organic compounds and some water. It is harvested in the form of latex from the sap of rubber trees. This latex is then refined into natural rubber for processing. Natural rubber is both an elastomer and a thermoplastic. Vulcanizing natural rubber creates a thermoset material.

Polyisoprene natural rubber is used widely in various applications and industries whether alone or as a compound with other materials. Some of its advantages include high durability, stretch ratio and water impermeability.

Read more below for advantages and properties of Natural rubber:

Advantages of Polyisoprene Natural Rubber

  • Extensive Hardness Range
  • Color ranges from translucent (soft rubber) to black (hard rubber)
  • Natural rubber can be compounded to meet specific application requirements
  • Outstanding vibration dampening and noise silencing properties
  • Can be manufactured for both electrical insulating or full conductivity
  • Protection and sealing properties

Natural Rubber Molding | Polyisoprene Natural Rubber Molding

Applications of Polyisoprene Natural Rubber

Polyisoprene Natural Rubber’s exceptional strength and compression set make it an ideal material for various engineering applications and many other industries:

  • Anti-Vibration Mounts
  • Tires
  • Springs
  • Bearings
  • Adhesives
  • Rubber Bands
  • Shock Mounts
  • Gaskets
  • Seals
  • Rolls
  • Hoses and Tubing

*Polyisoprene natural rubber is NOT RECOMMENDED for applications in which components are exposed to ozone, oils, or solvents.

Qualiform Proprietary Blend

In addition to high-quality natural rubber, we offer a proprietary blend with reinforcing fibers. This blend implements durable reinforcing fibers into the polyisoprene natural rubber for increased resistance against impacts and abrasions as well as enhanced durometer, toughness and performance. Qualiform also offers the proprietary blend for all other available rubber materials.

Other Rubber Molding Materials

Industries We Serve

  • Medical Industry
  • Automotive Industry
  • Lawn & Garden Industry
  • Electronic Industry
  • Transportation Industry
  • Material Handling Industry
  • Home Application Industry
Natural Rubber Molding
Our technical staff is ready to assist you with all your custom rubber molding needs.
Request A Quote