EPDM rubber is a synthetic rubber (as is Butyl rubber) but with a wide variation of formulations. Many of these formulations are not weldable and some are toxic to wildlife. There are however also versions of EPDM membranes that are approved for drinking water use(WRAS approved) and that are weldable.
We only work with the latter versions, which are available in a wide variety of thicknesses, both plain (foil) and reinforced
If you are unsure if EPDM Rubber would be most suited to your needs please contact us on + 44 (0)1277 653281.
EPDM Rubber Mechanical Properties
| Typical Properties |
Test Method |
1.00mm Plain |
1.25mm Scrim Reinforced |
| Specific gravity |
ISO 2781 |
1.07 ± 0.02 kg/l |
1.75 kg/l |
| Hardness |
ISO 7619 |
60 ± 5 0Shore A |
- - - |
| Tensile strength |
ISO 37 |
min. 10 Mpa |
min. 8 Mpa cloth |
| min. 10 Mpa rubber |
| Elongation, ultimate |
ISO 37 |
min. 400% |
min. 20% cloth |
| |
|
|
min. 300% rubber |
| Tear strength |
ISO 34 A |
min. 10 N/mm |
min. 25 N/mm |
| Accelerated air ageing |
ISO 188 |
|
|
| 168h/1000C |
|
|
|
| Chance in: |
|
|
|
| hardness |
|
max. 5 0Shore A |
max. 5 0Shore A |
| tensile strength |
|
max. 10% |
max. 10% |
| elongation |
|
max. 30% rel. |
max. 30% rel. |
| Ozone resistance 200 pphm / 400C / 20% /7d |
ISO 1431/1 |
no cracks |
no cracks |
| Brittleness |
DIN 53361 |
< -450 C |
- 400 C |
| Dimensional stability 24 h / 1000C |
DIN 8764 |
max. 0,5 |
± 1% max. |
| Fabric type |
- - - |
- - - |
550 Decitex Polyester |
| Grade WRAS Water Byelaws Scheme Approval to BS 6920-2000. |
Download the chemical resistance chart
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