design guide

Ethylene Propylene Diene Monomer (EPDM)

EPDM elastomers provide excellent resistance to heat, water, steam, ozone and UV light (color stability) while providing very good low temperature flexibility properties. These compounds also withstand the affects of brake fluids, alkali, mild acidic and oxygenated solvent environments. EPDM compounds are not recommended for gasoline, petroleum oil and greases, and hydrocarbon solvent environments.

EPDM’s are very effective for outdoor functions requiring long term weathering properties. EPDM elastomers are also suitable for use in hot water and steam environments. EPDM’s are especially suited to high temperature brake fluid applications.

Compound 559N

  • Specially formulated for steam and hot water applications
  • Extremely low volume swell in water
  • Good tensile strength and compression set properties
  • A good general purpose EPDM elastomer

Compound 560CD

  • Excellent tensile strength and flex fatigue resistance
  • Temperature operation up to 302°F (150°C)

Compound 560NF

  • Tailored for use in automotive brake applications
  • Exceptional resistance to brake fluid
  • Outstanding temperature and compression set resistance
  • Superior low temperature properties

Compound 559PE, 559GT

  • Exceptionally good in chloraminated and chlorinated water. Very low compression set. NSF, KTW, and WRAS certified.
  • Certified throughout the world for drinking water contact including: NSF, WRAS, KTW and ACS.

Compound 561NZ, 560CF

  • Similar to 559N physical and chemical properties

Compound 560YH

  • Low extractables – minimal taste and odor transfer to food and beverage products

Compound 558BP

  • The most chloramine resistant 70 Shore A EPDM compound available world wide.
Compound Hardness
Shore A
Tensile Elongation
MPa psi
559N 70 12.4 1800 250
560CD 60 14.5 2100 250
560CF 60 11.0 1600 350
560NF 70 14.5 2100 200
559PE 70 12.4 1500 135
561NZ 80 12.4 1800 100
560YH 70 13.8 2000 200
559GT 90 12.4 1800 100