FKM (fluoroelastomer)
High-performance fluoroelastomer with excellent chemical and high-temperature resistance. Resists hydrocarbons, fuels, hot oils, ozone and most chemicals. Available in 75 and 90 Sh A. The standard choice when NBR is too limited.
| Core material | FKM (fluoroelastomer) |
| Service temperature | −20 to +200 °C |
| Hardness | 75 / 90 Sh A |
| Standard sizes | Metric and imperial (AS568) on request — bespoke sizes available |
Browse other o-ring materials in our range.
−60 to +205 °C · Silicone elastomer
−20 to +205 °C · FKM (Viton) fluoroelastomer
−60 to +260 °C · Silicone elastomer
−20 to +260 °C · FKM (Viton) fluoroelastomer
−200 to +260 °C · 302 stainless steel spring
−200 to +260 °C · Solid PTFE (no core)
−30 to +100 °C · NBR (acrylonitrile-butadiene)
−40 to +150 °C · EPDM (ethylene-propylene-diene)
−60 to +200 °C · VMQ (silicone)
−40 to +150 °C · HNBR (hydrogenated nitrile)
Send us your size, material and quantity — we will respond within 1–2 business days.