Product
PTFE Seals & Components
Machined and molded PTFE seals, backup rings and encapsulated (elastomer-core, PTFE-jacketed) O-rings for chemical inertness and low friction beyond what standard elastomers can provide.
PTFE seal components — chemically inert, low friction.
Overview
What it is
PTFE seals are seal components machined or molded from PTFE (polytetrafluoroethylene) rather than a rubber compound — used where chemical inertness or a very wide temperature range rules out elastomers entirely.
PTFE has no elastic memory the way rubber does, so PTFE seals are usually designed with a spring or elastomer energiser behind them to maintain sealing force, or are sized to be pressed into a controlled interference fit — the PTFE itself provides the chemically inert, low-friction sealing surface while the energiser supplies the mechanical loading.
Why use it
Key benefits
- Near-universal chemical resistance — acids, solvents, steam, aggressive process chemicals
- Usable from cryogenic to roughly +260°C depending on grade
- Very low coefficient of friction — suited to dry-running or lightly lubricated dynamic seals
Materials
Which compound, and why
PTFE (Virgin, Glass, Bronze, Graphite)
Virgin PTFE for maximum chemical inertness and cryogenic service; glass-, bronze- or graphite-filled grades where extra wear resistance, hardness or thermal conductivity is needed.
Applications
Where it's used
Chemical processing, semiconductor equipment, and high-purity or high-temperature static seals beyond what standard elastomers can handle.