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Product Advantage
1. EPDM O ring is made of Ethylene Propylene Diene Monomer rubber, which has an saturated double chain formed by the polymerization of ethylene and propylene. Produced through molding process. Smooth surface without any burrs or cracks. Both glossy and frosted surfaces are acceptable, with an outdoor lifespan of up to 25 years.
2. It has excellent weather resistance and ozone resistance. The saturated structure of the main chain makes the EPDM rubber O-ring inherently resistant to aging, and its surface will not crack when exposed to high concentration ozone for more than 2400 hours. It is the best outdoor UV resistant rubber O-ring.
3. The chemical properties of EPDM rubber O-rings are stable. It has good resistance to chemical solvents. It can tolerate various polar solvents, such as alcohols, ketones, and lipids. It also has good resistance to acidic or alkaline solutions with pH values between 5-9.
4. It has good waterproof properties, high temperature steam resistance, and good impermeability to gases. Aging resistant waterproof leakproof EPDM rubber O-rings are commonly used in aqueous media, such as pump seal, water pipe seal, and water tank seal.
Item | Unit | EPDM O-Ring | |
Normal Condition | Color | / | Black,Yellow,Purple |
Hardness | Shore A | 30—90 | |
Tensile Strength | MPa | 9.6—14.7 | |
Elongation | % | 110—438 | |
Compression Set (100°C/22h) | % | 40—51 | |
Hot Air Aging (70°C/70h) | Hardness Change | Shore A | 3—5 |
Tensile Strength Change | % | -2—8 | |
Elongation Change | % | -29—-38 | |
Oil Resistance Test (IRM901#) (150°C/70h) | Hardness Change | Shore A | / |
Tensile Strength Change | % | / | |
Elongation Change | % | / | |
Volume Change | % | / | |
Oil Resistance Test (IRM903#) (150°C/70h) | Hardness Change | Shore A | / |
Tensile Strength Change | % | / | |
Elongation Change | % | / | |
Volume Change | % | / | |
Low Temperature Resistance Test | Brittle Temperature | °C | -55—-100 |
Ethylene propylene Rubber (EPDM]
Temperature Range: -50 °C to 150 °C
Advantage: Excellent ozone and ageing resistance,
resistance, excellent water-proof function
Disadvantage: Substandard polar solvent
Use: Ozone, water vapor situation
Here are specific application scenarios for EPDM O-rings:
1. Automotive industry: Used as refrigerant seal in brake systems of automotive or electric vehicle. Used as water tank seal, sensor seal, pump seal and water pipe seal in cooling systems. EPDM O ring seals are also used in car doors and windows.
2. Construction and Machinery: EPDM rubber O-rings are widely used in various outdoor pipelines, valves, and pumps. As a static seal in mechanical seal, its service life is 5-10 times longer than other rubbers.
3. Chemical equipment: Commonly used for chemical reagent seal, as acid and alkali resistant anti-corrosion lining and anti-corrosion gasket in chemical equipment. Due to its good resistance to alcohols, it is also commonly used for wine, beer and other fermented alcoholic beverage.
Q1. What sizes do you have?
A: We have all sizes of AS568 standard and JIS B 2401standard, and about 3000 non-standard sizes, we also can produce the size according to your requirement.
Q2. Do you have any certificates?
A: We have IATF16949:2016 certificate, ROHS certificate, PAHS certificate, REACH certificate and FDA certificate.
Q3. Can I get some samples before order?
A: Yes, we can provide free samples. You only need to pay for the freight.
Q4. What is the lead time?
A: The lead time for samples is 1-3 days. The lead time for mold is 1-2 weeks. The lead time for batch order is 1-3 weeks.
