Seals & Gaskets
Stock for flange gaskets, static seals and O-rings, with broad chemical resistance and stability across temperature.
Extruded homogeneous PTFE rod, carrying the base properties intact: −200 to +260 °C, broad chemical resistance and the lowest friction (μ 0.04). Ø5–300 mm standard, cut to the length you order. Widely used as machining stock for seals, bushings, liners, seats and electrical insulation.


The table below describes a standard SKU. Every line is made to order against your drawing, load case and friction requirement. Ask us about special temperature or chemical duty.
| Property | Value | Note |
|---|---|---|
| Diameter (Ø) | Per drawing | Standard in Ø 5 steps · other diameters on request |
| Length (L) | Per drawing | Cut to order · in 100 mm steps |
| Grade | Per drawing | Glass, bronze or carbon filler |
| Density | Per drawing | For virgin PTFE |
| Coefficient of Friction (μ, dry) | Per drawing | At 10 MPa, room temperature |
| Operating Temperature | Per drawing | Stable across the PTFE range |
| Tensile Strength | Per drawing | Virgin PTFE, room temperature |
| Dielectric Strength | Per drawing | Insulation · high-frequency behaviour |
| Water Absorption | Per drawing | 24 h at room temperature |
| Surface Roughness (Ra) | Per drawing | On a CNC machined face |
| General Tolerance | Per drawing | Where not otherwise specified |
| Certification | Per drawing | Medical and food grades optional |
Moulded from PTFE alone, with no filler. Lowest friction, best chemical stability, and the full −200 to +260 °C range. For medical, food and semiconductor wet processes where purity matters.
Copolymerisation lowers crystallinity, improving creep resistance and cold flow. For precision seals and sealed bushings that must hold up under long-term load.
Stock for flange gaskets, static seals and O-rings, with broad chemical resistance and stability across temperature.
Rod for low-friction slide bushings, pipe lining and sleeves. Runs unlubricated.
High-voltage and high-frequency insulating parts, standoffs and connector housings, with strong dielectric behaviour.