The 100% cured EPDM membrane is made of a synthetic rubber Ethylene-Propylene-Diene Monomer. The membrane is extremely durable and has excellent thermal shock and UV rays/ozone resistance. The membrane retains its elasticity at temperature from -45ºC to 130ºC and resistant to temperature shocks up to 250ºC.
Features
☆ Resistant to UV/oxidation/heat and ozone
☆ Excellent tensile strength and elongation rate, dimensions stability, long service life
☆ Superior properties and stability and flexibility at low and high temperature Â
☆ High puncture and tear and impact resistance
☆ Excellent gas impermeability and resistance to acid rains, low weight
☆ Quick and easy installation, no need of flames or torches
Uses
☆ Roofs or re-roofing, underground structures of residential and commercial buildings
☆ Parking lots, reservoirs, swimming pools, sewage treatment plants, warehouses
☆ Highway, airports, railway, bridges, tunnels
☆ Especially for the projects with high requirements in durability, anti-corrosion, and deformation
Specification
| Thickness, mm | Width, m | Length, m |
| 1.2 | 1.2, Â 2.0 or customized | 20 or customized |
Technical Data: Executive Standard GB18173.1-2012
| No | Item | Unit | Index | |
| 1 | Tolerance of size |  Thickness | % | ±10 |
|  Width | % | ±1.0 | ||
| Â Length | % | No negative | ||
| 2 | Tensile strength |  Normal temperature, 23ºC | MPa | ≥7.5 |
|  High temperature, 60ºC | MPa | ≥2.3 | ||
| 3 | Ultimate elongation |  Normal temperature, 23ºC | % | ≥450 |
|  -20ºC | % | ≥200 | ||
| 4 | Tearing strength |  | KN/m | ≥25 |
| 5 | Watertightness, 0.3MPa*30 min | Â | * | Â Impermeable |
| 6 | Foldability at low temperature |  -45ºC | ºC | No crack |
| 7 | Heat expansion |  Extension | mm | ≤2 |
|  Contraction | mm | ≤4 | ||
| 8 | Hot air ageing, 80ºC×168h |  Tensile strength retention at break | % | ≥80 |
|  Retention of elongation at break | % | ≥70 | ||
| 9 | Alkaline resistance,10%Ca(OH)2 Normal temperature×168h |
 Tensile strength retention at break | % | ≥80 |
|  Retention of elongation at break | % | ≥80 | ||
| 10 | Ozone resistance, 40ºC×168h |  Elongation 40%, 500×10-2 | * | No crack |
| 11 | Accelerated weathering |  Tensile strength retention at break | % | ≥80 |
|  Retention of elongation at break | % | ≥70 | ||
Packing and Delivery
10-24 rolls/pallet depending on the thickness and length of the roll.
Delivery time: within 15 days after payment
Application
EPDM can be installed at fully adhered, mechanically attached or ballasted by the seams sealing with liquid adhesives or specially formulated tapes.
Storage
Store away from sources of punctures and physical damage. Keep dry and store away from ignition sources and open flame.
Shelf Life: Unlimited
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