EPDM

Rubber bushings EPDM for seal manufacturing

Color – black/BLUE

EPDM | FDA is based on ethylene-propylene rubber and is commonly known as EPDM. It has outstanding resistance to hot water, steam (up to 180 °C), washing agents and polar organic solvents and good resistance to weathering, ozone and ageing. EPMD | FDA is not resistant to mineral, vegetable and animal oils, resistance to gas permeability and radiation is low.
EPDM | FDA can be used in glycol based break fluids, provided previous successful tests passed. EPDM | FDA corresponds to foodgrade standards.

Resistance

Good resistance
Average resistance
Low resistance
Hot water and steam up to +180°С
Silicone oil and grease (can cause reduction)
Aliphatic hydrocarbons (propane, butane, petroles)
Fire-resistant hydraulic fluids HFD-R
Mineral oils and adipose
Detergents, sodium and potassium alkali
Aromatic and chlorinated hydrocarbons.
Organic and inorganic acids and basis
Adipose and vegetable oils
Saline and oxidizing environments.
biodegradable hydraulic fluids
Fire-resistant hydraulic fluids HFC (glycol water, only if mineral oils are absents))
Fire-resistant pneumatic fluids HFA, HFB и HFD-S
Big amount of solvents (ketone, esters, alcohols)
Break fluids based on glycol

Application

EPDM can be used for production of U-shaped seals, lip and chevron seals. EPDM is mainly used in cleaning equipment (washing powder, sodium alkali). Moreover, EPDM is the most applicable material for usage in hot water or hot steam (silicone grease lubrication).

Mainly used

  • Special parts for cleaning equipment
  • Piston and rod seals
  • O-rings
  • Seals for vehicle break system

EPDM Material Data Sheet

Properties
Value
Unit
Standard
Hardness at 20°:
85 +/-2
Shore A
DIN 53505
Density:
1,22
g/cm³
DIN ISO 1183-1
100% Modulus:
>10,0
N/mm²
DIN 53504
300% Modulus:
N/mm²
DIN 53504
Tensile strength:
>14
N/mm²
DIN 53504
Elongation at break:
>130
%
DIN 53504
Rebound resilience:
>35
%
DIN 53512
Tear strength:
>5
N/mm²
DIN ISO 34-1
Abrasion:
<120
mm³
DIN 53516
Compression set:*
<12
%
DIN ISO 815-1
Compression set:**
<17
%
DIN ISO 815-1
Compression set:***
<14
%
DIN ISO 815-1
Min. service temperature:
-50
°C
Max. service temperature (short term):
+150 (+180)
°C

*Compression set @ 23°C, 72 hours, 10% deflexion
**Compression set @ 70°C, 24 hours, 20% deflexion
***Compression set @ 100°C, 24 hours, 20% deflexion

All above established data results from random tests which were taken from the functioning production. All data was stated based on standard test-products in accordance with ISO, DIN and ASTM standards and can substantially not be extended to the completed seal. Our practical technical recommendation, either oral, written or through tests is given in conformity with our best knowledge. However, this data is to be regarded as non-obligatory advice, also taking into consideration any protective rights of a third party, and does not acquit you from making tests with our product in relation to its adaptability for the assigned process and intendment. Utilization, application and processing of the products befall completely outside of our control and are therefore solely your liability. As regards the responsibility, it will be limited to all damages in the value of the product which we delivered and you applied. Certainly, we do assure the immaculate quality of our products in concordance with our general sales and delivery conditions.