What is EPDM?
EPDM (Ethylene Propylene Diene Monomer) is a synthetic rubber composed of ethylene, propylene, and a small amount of diene monomer (3–9% for cross-linking). Its ethylene content (45–75%) and filler-loading capacity make it versatile for industrial use.
Key Properties
PropertyRange/ValueHardness (Shore A)30–90Tensile Strength4–25 MPa (500–2500 PSI)Elongation at Break≥300%Density0.90–2.00 g/cm³Service Temperature-50°C to +150°CThermal Expansion160 µm/(m·K)Glass Transition Temp.-54°CAdvantages of EPDM rubber
EPDM Rubber Weather Resistance
- Resists UV rays, ozone, moisture, and extreme temperatures.
- Ideal for outdoor seals (e.g., windows, doors, ship containers).
- Durability
- Lifespan exceeds 100 years in moderate conditions.
- Superior abrasion and tear resistance compared to other rubbers.
- Heat and Cold Resistance
- Stable from -50°C to +150°C.
- Outperforms silicone in mechanical stability at high temps.
- Chemical Resistance
- Withstands diluted acids, alkalis, ketones, and polar fluids.
- Electrical Insulation
- High dielectric strength; used in cables and electrical components.
- Safety
- Low toxicity, odorless, and flame-retardant (meets BS EN 45545-2 and EN ISO 9239-1 standards).
- Manufacturing Flexibility
- Easily molded, extruded, or cut into sheets, tubes, and custom shapes.
Common Applications
- HVAC Systems
- Seals for compressors, drain hoses, and vibration-damping components.
- Automotive
- Weatherstripping, vibration dampers, and engine gaskets.
- Construction
- Roofing membranes, expansion joint seals, and tank linings.
- Industrial Machinery
- Gaskets and seals resistant to chemicals, steam, and abrasion.
- Electrical Engineering
- Insulation for cables and high-voltage equipment.
Flammability
EPDM is halogen-free and flame-retardant, emitting low smoke. Used in fire-safe applications like train flooring and public infrastructure.
Why Choose EPDM?
EPDM combines durability, flexibility, and resistance to extreme conditions, making it a top choice for industries prioritizing longevity and safety. Its cost-effectiveness and adaptability in manufacturing further solidify its role in automotive, construction, HVAC, and electrical sectors.
Vl Sealing Strips Solve your problems
“Are you struggling with durability and performance issues with your seals? Our Ethylene-Propylene-Dimethylene-Dipropylene (EPDM) adhesive strips are designed to solve these problems.
Companies like Welink Hardware Company specialize in high quality EPDM rubber seals, meeting the needs of industries worldwide with decades of expertise.OueEpdm Rubber at Great PricesWe use high quality EPDM rubber materials.
Why choose us? Here are a few reasons:
R1：Our ethylene propylene diene diene (EPDM) rubber strips are extremely resistant to UV rays, ozone, and extreme weather, making them particularly suitable for outdoor applications such as window and door sealing and roof waterproofing.
After using our EPDM rubber strips in a famous construction project, the waterproof performance of the roof was improved by 30% and the maintenance cost was reduced by 50%.
R2：From severe cold to high temperatures, our epdm seals remains flexible and ensures consistent sealing performance. It’s suitable for use in automotive, HVAC systems and other areas where temperature resistance is required. At temperatures as low as -50°C, EPDM rubber (EPDM) tape retains more than 90% of its elasticity, far more than other materials.”
Many outdoor high rise curtain walls use our EPDM rubber strips.
R3：Our epdm seals have excellent resistance to acids, alkalis, water and other chemicals, making them ideal for sealing industrial equipment and piping.
When a chemical plant used our EPDM rubber tape, the frequency of equipment seal replacements was reduced from two per year to one every five years.
R4：Our EPDM rubber tapes are non-toxic, odorless, and comply with international environmental standards (e.g. RoHS, REACH), and are suitable for use in food, medical and other industries that require a high degree of safety. Our products have passed ISO 9001 quality system certification. You can purchase with confidence.
