Color - black
EPDM is an elastomer based on Ethylene-Propylene-Diene rubber. EPDM has an exclusive resistance to hot water, steam, detergents and polar organic solvents. EPDM can also be used in glycol based break fluids; herewith the state standards should be followed.
EPDM - filled with soot and is not suitable for electrical insulation
EPDM is not resistant to mineral oils
EPDM has an excellent mechanical properties and very wide temperature range: from -50°C up to +150°C (hot steam up to +180°C). Due to very saturated structure EPDM has a very good ozone, weather and ageing resistance. Mineral oils and lubricants, as well as organic oils and adipose, causes severe swelling. Special structure of softeners allows the usage of EPDM in break fluids based on glycol (SL-DOT4). For this purpose local standards supposed to be followed and the procedure should be authorized. Gas permeability is rather high, as well as radiation exposure resistance.
Resistance
| Good resistance | Medium 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 | 85 | Sh A | DIN 53505 | |
| Density | 1,22 | g/cm³ | DIN 53479 or DIN EN ISO 1183-1 | |
| Compression set 23°C / 72 h | 11,3 | % | DIN 53517 or DIN ISO 815-1 | |
| Compression set 70°C / 24 h | 16,1 | % | DIN 53517 or DIN ISO 815-1 | |
| Compression set 100°C / 24 h | 13,2 | % | DIN 53517 or DIN ISO 815-1 | |
| 100 % modulus | 9,7 | MPa | DIN 53504 | |
| Rebound resilience | 36 | % | DIN 53512 | |
| Tensile strength | 14,4 | MPa | DIN 53504 | |
| Elongation at break | 137 | % | DIN 53504 | |
| Tear strength | 5 | N/mm | DIN 53515 or DIN ISO 34-1 A | |
| Abrasion | 120 | mm³ | DIN 53516 | |
| Min. working temperature | -50 | °C | ||
| Max. working temperature | +170 | °C |
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.
