Custom EPDM O Ring, Heat & Dilute Chemical Resistant O-Ring, Low Compression Set for Construction and Water Treatment Sealing

This custom EPDM O-ring delivers heat and dilute chemical resistance with low compression set, making it a dependable sealing solution for construction, water treatment, HVAC, automotive, and sanitary equipment applications. Manufactured under ISO9001:2000 quality management, it combines consistent performance with reasonable pricing and full support for customer-specific designs.

EPDM O-ring sealing products from an ISO9001:2000 certified manufacturer — good quality, reasonable price, and customer designs welcome.
An O-ring is a ring-shaped sealing product typically formed from elastic material through a molding process. It is generally used to seal fluid liquids or gases and often functions as part of a complete sealing assembly. O-rings perform well in both static and dynamic sealing applications. Main materials include NR, CR, NBR, SBR, FKM, silicone, HNBR, and PU.

• Superior resistance to ozone, UV radiation, and weather aging for a long service life under outdoor exposure.
• Excellent resistance to hot water and steam — ideal for wet and high-humidity working environments.
• Good tolerance to dilute acids, alkalis, and polar chemical media.
• Low compression set and stable elasticity for reliable, leak-proof sealing.
• Standard AS568 sizes in stock, with custom dimensions and hardness available.
• Alternative rubber materials available — NBR, silicone, and FKM — for diverse working requirements.

• Water treatment industry: Seals for water pumps, pipe flanges, water valves, and filter housings.
• HVAC systems: Sealing components for heating, ventilation, and air conditioning equipment.
• Automotive industry: Radiator, cooling circuit, and brake fluid system seals.
• Plumbing & sanitary equipment: Seals for potable water pipelines and faucets.
• Outdoor & construction machinery: Seals exposed to sunlight and atmospheric aging.
• Food & sanitary machinery: Food-grade EPDM O-rings for clean fluid processing equipment.

1. High and low temperature resistance.
2. Abrasion resistance and UV resistance.
3. Ozone resistance (silicone rubber O-ring option available).
4. Material options: silicone, NBR, SBR, NR, EPDM, IIR, EP, CR, and more.
5. Waterproof and oil resistant.
6. Highly durable with reliable sealing performance.
7. Innocuous and safe — widely used in automotive and motorcycle products.
8. Manufactured according to customer requirements.