Epichlorohydrin Rubber (Hydrin/ECO)

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Abbreviation ECO
Common Name Hydrin
ASTM D-2000 classification CH, DK, DJ
Military(Mil-Std417) SB
Chemical Definition Epichlorohydrin

General Characteristics  
Durometer-Range (Shore A) 40-90
Tensile Range (P.S.I) 500-2500
Elongation (Max.%) 350
Compression Set Good
Resilience-Rebound Good
Abrasion Resistance Good
Tear Resistance Good
Solvent Resistance Good
Oil Resistance Excellent
Low Temperature Usage (°F) -15° to -50°
High Temperature Usage (°F) to 225°
Aging Weather-Sunlight Good
Adhesion To Metals Good

Feature

Advantage:

  1. Exhibiting most of the better qualities of nitrile and neoprene.
  2. Good resistance to oil and solvent.
  3. Has low swell in gasoline.
  4. Low temperature performance is better than either nitrile or neoprene.
  5. Offers much less torsional stiffness at sub zero temperatures.
  6. High temperature endurance is good up to 250°F.
  7. Good ozone weathering and water resistance.
  8. The abrasion is equivalent to the nitriles.

Disadvantage:

  1. Not recommended for ketones, esters, aldehydes, chlorinated and nitro hydrocarbons.