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What is EPDM Rubber?

Before the development of EPDM rubber, seals and weatherstripping were made from natural rubber.  Natural rubber does not have strong weather resistant properties and degraded when exposed to UV for long periods of time.  With the growth of the industry and demand for a UV resistant product, natural rubber could not keep up and meet the complex demands of the industry.
photo of part number 70-3835-265
EPDM (Ethylene Propylene Diene Monomer) was developed in the 1960s to meet the increasing demand for innovation in manufacturing.
EPDM essentially mirrors the physical properties of natural rubber and adds the important function of UV resistance.  Since its 20 th century birth, EPDM has been a mainstay in the world’s economy.
While EPDM rubber has excellent weathering and aging resistance, there are a few things you should know about its chemical properties.  While compatible with most substances you will find around your RV, there are a few substances that have the potential of degrading EPDM rubber including:
  • Oils
  •  Kerosene
  • Gasoline
  • Halogenated solvents (chloroform is a commonly known example)

EPDM rubber can be shaped in any way and maintains flexibility for a tight seal.  EPDM rubber seals and weatherstripping are used to reduce noise and provide insulation.  Rubber grommets are used to protect and insulate fuel, water and electrical lines from being chaffed.

For all your RV weatherstripping needs, Steele Rubber Products provides high quality products made from EPDM rubber.  You can find a complete list of all of our doors & compartmentswindow sealsslide out sealsinsert trim & screw track covers and  universal parts on our website  Additionally, you can download a free  RV Parts catalog online or give us a call to request a mail catalog 800-230-6752.

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