Tecnoflon PFR PFR95 FFKM O-Ring: Compound, Equivalents, UK Suppliers
Verified by Rachel Mayfield, Supply Chain Analyst - April 2026
Tecnoflon PFR PFR95 is a 90 Shore A perfluoroelastomer (FFKM) manufactured by Solvay Specialty Polymers. It seals continuously to 250°C and is specified for higher-pressure valve seats and similar service. Hard FFKM.
Specifications
| Property | Value |
|---|---|
| Compound | PFR95 |
| Manufacturer | Solvay Specialty Polymers |
| Maximum continuous temperature | 250°C |
| Minimum temperature | -10°C |
| Hardness | 90 Shore A |
| Colour | Black |
| Material family | Hard FFKM |
Where Tecnoflon PFR PFR95 is used
Tecnoflon PFR PFR95 is specified for: Higher-pressure valve seats.
Tecnoflon PFR PFR95 equivalents from other FFKM manufacturers
If Tecnoflon PFR PFR95 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 |
|---|---|---|---|---|
| Kalrez 8475 | DuPont (Chemours) | 325°C | 90 Shore A | approx |
Available O-ring sizes
Tecnoflon PFR PFR95 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
Tecnoflon PFR PFR95 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
- Solvay Specialty Polymers — Manufacturer
- ISO 3601 O-ring sizes
- BS 1806
Frequently Asked Questions
What is Tecnoflon PFR PFR95 used for?
Tecnoflon PFR PFR95 is a 90 Shore A FFKM (perfluoroelastomer) compound from Solvay Specialty Polymers. It is used in Higher-pressure valve seats. Continuous service temperature: -10°C to 250°C.
What is the temperature rating of Tecnoflon PFR PFR95?
Tecnoflon PFR PFR95 has a continuous service temperature range of -10°C to 250°C. Short-term excursions above the maximum are possible but degrade service life.
What is the equivalent of Tecnoflon PFR PFR95?
Direct equivalents to Tecnoflon PFR PFR95 include: Kalrez 8475. Always confirm chemical compatibility against your specific fluid before substitution.
How much does Tecnoflon PFR PFR95 cost?
FFKM O-rings such as Tecnoflon PFR PFR95 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 Tecnoflon PFR PFR95 in the UK?
Tecnoflon PFR PFR95 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
- Solvay Specialty Polymers — Manufacturer
- ISO 3601 O-ring sizes
- BS 1806