High-performance O-rings for every industry
We supply American Standard (AS568), British Standard (BS) and Japanese Standard (JIS) O-rings for compatibility with global equipment, along with custom-molded O-rings designed around your groove dimensions and performance needs. See the O-ring size chart for standard sizes.
O-ring materials
- EPDM — excellent weather and UV stability; outdoor sealing and water applications.
- FKM (Viton®) — superior chemical resistance, service up to 250°C, excellent fuel compatibility.
- FFKM (Kalrez®-type) — near-universal chemical resistance with continuous service up to +320°C.
- Silicone — -60°C to +200°C, electrical insulation, food-grade variants.
- Nitrile (NBR) — good oil and fuel resistance for automotive and industrial use.
- Neoprene (CR) — ozone, weather and chemical resistance for marine and construction.
Industries
Oil & gas (drilling equipment, pipelines, wellheads) · Food & beverage (FDA-grade seals) · Pharma & medical (aseptic sealing) · Automotive (engines, transmissions, fuel systems) · Aerospace (hydraulic and engine sealing) · Electronics (moisture and contamination protection).
Frequently asked questions
How do I find the right size? O-rings are specified by inner diameter (ID) and cross-section (CS). Match against AS568, BS or JIS, or ask us for a custom size.
How do I choose a material? Consider temperature range, chemical compatibility, static vs dynamic use, compliance needs (FDA, USP, aerospace) and cost.
When should I choose FFKM over FKM? For extreme chemicals, purity requirements or temperatures above 250°C — semiconductor, pharma, aerospace and critical chemical processes.
Are O-rings suitable for food and pharma? Yes — with FDA, USP Class VI and 3-A compliant grades of Silicone, EPDM and FFKM.
Get in touch to discuss your requirement — send a drawing, a sample or the application details and our team will recommend the right material and design.
