Kalrez 9100 FFKM O-Ring: Compound, Equivalents, UK Suppliers
Verified by Rachel Mayfield, Supply Chain Analyst - April 2026
Kalrez 9100 is a 90 Shore A perfluoroelastomer (FFKM) manufactured by DuPont (Chemours). It seals continuously to 327°C and is specified for oil and gas and similar service. High-strength FFKM for high-pressure / RGD.
Specifications
| Property | Value |
|---|---|
| Compound | 9100 |
| Manufacturer | DuPont (Chemours) |
| Maximum continuous temperature | 327°C |
| Minimum temperature | 0°C |
| Hardness | 90 Shore A |
| Colour | Black |
| Material family | High-strength FFKM for high-pressure / RGD |
Where Kalrez 9100 is used
Kalrez 9100 is specified for: Oil and gas, RGD (rapid gas decompression) resistant.
Kalrez 9100 equivalents from other FFKM manufacturers
If Kalrez 9100 isn't available, these compounds from competing manufacturers have similar chemistry and operating windows. Always verify against your actual fluid and temperature before substitution.
| Equivalent compound | Manufacturer | Max temp | Hardness | Direct match |
|---|---|---|---|---|
| Chemraz 696 | Greene Tweed | 327°C | 90 Shore A | ✓ |
Available O-ring sizes
Kalrez 9100 is supplied in:
- BS 1806 sizes: BS001 to BS932 (UK / EU standard, imperial-origin metric)
- AS568 sizes: -001 to -932 (US standard, dimensionally identical to BS 1806)
- ISO 3601 sizes: metric IDs from 2 mm to 670 mm with cross-sections 1.0 mm to 7.0 mm
- JIS B 2401: P, G, S series (Japanese OEM equipment)
- Custom / non-standard: built-to-print for OEM applications
For a list of sizes commonly stocked in the UK, see the BS 1806 size chart, ISO 3601 metric chart, or contact a UK seal specialist below.
UK availability
Kalrez 9100 is supplied in the UK by FFKM specialists carrying multiple manufacturer lines. Lead time is typically 2-5 working days for stock sizes, 4-8 weeks for custom-moulded sizes. Use the form below to get a quote from a UK FFKM specialist.
References
- DuPont (Chemours) — Manufacturer
- ISO 3601 O-ring sizes
- BS 1806
Frequently Asked Questions
What is Kalrez 9100 used for?
Kalrez 9100 is a 90 Shore A FFKM (perfluoroelastomer) compound from DuPont (Chemours). It is used in Oil and gas, RGD (rapid gas decompression) resistant. Continuous service temperature: 0°C to 327°C.
What is the temperature rating of Kalrez 9100?
Kalrez 9100 has a continuous service temperature range of 0°C to 327°C. Short-term excursions above the maximum are possible but degrade service life.
What is the equivalent of Kalrez 9100?
Direct equivalents to Kalrez 9100 include: Chemraz 696. Always confirm chemical compatibility against your specific fluid before substitution.
How much does Kalrez 9100 cost?
FFKM O-rings such as Kalrez 9100 are typically £30 to £500 per piece depending on size, with custom or large-bore parts at the upper end. Get a current quote via the form on this page.
Where can I buy Kalrez 9100 in the UK?
Kalrez 9100 is supplied in the UK by independent FFKM seal specialists with multi-brand inventory. Lead time is 2-5 working days for stock BS/AS568 sizes, 4-8 weeks for custom-moulded sizes.
References
- DuPont (Chemours) — Manufacturer
- ISO 3601 O-ring sizes
- BS 1806