Place of Origin:
Guangdong,China
Brand Name:
ORK
Certification:
FDA,ROHS,ISO9001,TS16949
Model Number:
Customized
This wholesale EPDM O-ring seal delivers reliable heat and weather resistance for demanding sealing applications, including cooling systems and agricultural machinery. Manufactured by an ISO9001:2000-certified factory, each O-ring is produced through precision compression molding and is available in a broad selection of rubber compounds to match your specific operating conditions.
An O-ring is a circular sealing component typically manufactured from elastic materials via compression molding. It is widely used to seal fluids, liquids, and gases, serving as an essential element in complete sealing assemblies. O-rings perform well in both static and dynamic sealing applications. Common available materials include NR, CR, NBR, SBR, FKM, Silicone, HNBR, PU, and more.
| Process Stage | Sheet | Button |
|---|---|---|
| Press Cure | 5 min at 170°C | 10 min at 170°C |
| Post Cure | 1 hr at 125°C | 1 hr at 125°C |
| Property | Specification | Test Result |
|---|---|---|
| Hardness, Shore A | 70° ±5 | 70 |
| Tensile Strength, MPa, min | 14 | 14.9 |
| Ultimate Elongation, %, min | 300 | 327 |
| Specific Gravity (g/cm³) | — | 1.15 |
| Parameter | Specification | Test Result |
|---|---|---|
| Change in Hardness, points | 10 | 2 |
| Change in Tensile Strength, % | -25 | -4.1 |
| Ultimate Elongation, max % | -25 | -3.4 |
| Test | Condition | Specification | Test Result |
|---|---|---|---|
| Compression Set, max | 22 h at 70°C | 25 | 8 |
| Resistance to Ozone (Exposure Method B) | — | No Crack | Pass |
| Water Resistance (EA14) | 100°C, 70 h | Volume Change ±5% | 3.7% |
| Low-Temperature Brittleness (F19) | After 3 min at -55°C | Nonbrittle | Pass |
Custom designs and compound selections are welcome. Contact us for wholesale pricing and specification matching.
Send your inquiry directly to us