EPDM rubber - ethylene propylene rubber

EPDM

EPDM rubber (ethylene propylene to

The main properties of EPDM

EPDM rubber has good mechanical properties and a very wide temperature range of application. Due to its rich structure, EPDM has a very good resistance to ozone, atmospheric effects and aging, but is absolutely not resistant to mineral oils. Mineral oils and fats, as well as animal and vegetable oils and fats contribute to unacceptably strong swelling. The special softener structure also permits the use of EPDM-based rubber seals in glycol-based brake fluid (SL-DOT4). For use in such environments, local regulations must be adhered to and appropriate permits must be available. Radiation resistance is relatively high.

Below are data on the stability of rubber products from EPDM rubber to the effects of certain media.

SUSTAINABLE TO:
NO SUSTAINABILITY TO:
  • hot water
  • water vapor
  • a large amount of organic and inorganic bases and acids
  • oxidative environment
  • organic and inorganic alcohols
  • ketones
  • flame-retardant hydraulic fluids such as & nbsp; HSC, HSD
  • glycol-based brake fluids
  • freon R134a
  • detergents, sodium (soda) and potassium alkali
  • salt solutions and oxidizing active media
  • large amount of solvents (eg alcohol = alcohols, ketones, ester)
  • aliphatic hydrocarbons (propane, butane, gasoline)
  • mineral oils and fats
  • aromatic and chlorinated hydrocarbons
  • vegetable and animal oils and fats
  • biodegradable hydraulic fluids
  • Severely flammable pneumatic fluids & nbsp;
TEMPERATURE RANGE: -20 ° C to +120 ° C

& nbsp;

Scope of products from EPDM

The main field of application of EPDM is as a rubber component in mechanical seals (bellows, O-rings) in pumping equipment. Moreover, EPDM is the most suitable material for use in hot water or hot steam (when installed, it is necessary to lubricate with silicone fats).

Primary application:
- special parts for washing installations;
- bayonet and piston seals;
- o-rings;
- seals for automotive brake systems.

Basic physical and mechanical characteristics of EPDM

Properties

Unit of Measurement

Value

Hardness

SHORE A

85 ± 5

Density

g /cm 3

1.22 ± 0.02

Tensile Strength

N /mm 2

& ge; 12

Tensile Strength

%

≥ 80

Residual deformation 100 ° С /22h

%

≤ 10

Durability at a wide gap

N /mm

10

Rebound Elasticity

%

38

Abrasion

mm 3

140

Minimum Application Temperature

° C

- 20

Maximum application temperature

° C

+ 120