SKF products

SKF

Thermoplastics (SKF Seals)

Thermoplastic materials such as PTFE, PEEK, UHMWPE, and polyamide (PA) are used in SKF seals where low friction, high chemical resistance, or high temperature capability is required beyond elastomer limits. PTFE is widely used for low-friction piston and rod seal slippers, spring-energised Spectraseal jackets, and back-up rings. PEEK is selected for extreme pressure and temperature environments (up to 300°C). UHMWPE offers high abrasion resistance and low friction for water and slurry applications. Polyamide provides a tough, cost-effective material for back-up rings and guide rings. SKF processes these thermoplastics by injection moulding and by machining from stock shapes in the SEAL JET process. The thermoplastic family extends the operational boundaries of sealing systems into the most aggressive process media and temperature extremes.

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Trusted by Industry Leaders

SAIL – Steel Authority of India Limited, industrial client of Drishti Powertech
Tata Steel – industrial client of Drishti Powertech
Hindalco – Aditya Birla Group aluminium & copper, industrial client of Drishti Powertech
Jindal Steel & Power – industrial client of Drishti Powertech
NMDC – National Mineral Development Corporation, industrial client of Drishti Powertech
JSW Steel – industrial client of Drishti Powertech
Vedanta ESL Steel Limited – industrial client of Drishti Powertech
NALCO – National Aluminium Company Limited, industrial client of Drishti Powertech
Industrial enterprise – client of Drishti Powertech LLP
Hindustan Copper Limited – Govt. of India enterprise, industrial client of Drishti Powertech
UltraTech Cement – industrial client of Drishti Powertech
Coal India Limited – industrial client of Drishti Powertech
ACC Cement – industrial client of Drishti Powertech
Indian Oil Corporation – industrial client of Drishti Powertech
SAIL – Steel Authority of India Limited, industrial client of Drishti Powertech
Tata Steel – industrial client of Drishti Powertech
Hindalco – Aditya Birla Group aluminium & copper, industrial client of Drishti Powertech
Jindal Steel & Power – industrial client of Drishti Powertech
NMDC – National Mineral Development Corporation, industrial client of Drishti Powertech
JSW Steel – industrial client of Drishti Powertech
Vedanta ESL Steel Limited – industrial client of Drishti Powertech
NALCO – National Aluminium Company Limited, industrial client of Drishti Powertech
Industrial enterprise – client of Drishti Powertech LLP
Hindustan Copper Limited – Govt. of India enterprise, industrial client of Drishti Powertech
UltraTech Cement – industrial client of Drishti Powertech
Coal India Limited – industrial client of Drishti Powertech
ACC Cement – industrial client of Drishti Powertech
Indian Oil Corporation – industrial client of Drishti Powertech
ONGC – Oil and Natural Gas Corporation, industrial client of Drishti Powertech
GAIL India Limited – industrial client of Drishti Powertech
NTPC – National Thermal Power Corporation, industrial client of Drishti Powertech
Tata Power – industrial client of Drishti Powertech
Indian Railways – industrial client of Drishti Powertech
IFFCO – Indian Farmers Fertiliser Cooperative, industrial client of Drishti Powertech
Super Smelters Limited – industrial client of Drishti Powertech
Rashmi Group – industrial client of Drishti Powertech
Shyam Steel – industrial client of Drishti Powertech
S R Rungta Group – industrial client of Drishti Powertech
MP Birla Group – industrial client of Drishti Powertech
Usha Martin – industrial client of Drishti Powertech
Shyam Metalics – industrial client of Drishti Powertech
Nuvoco Vistas Corporation – industrial client of Drishti Powertech
ONGC – Oil and Natural Gas Corporation, industrial client of Drishti Powertech
GAIL India Limited – industrial client of Drishti Powertech
NTPC – National Thermal Power Corporation, industrial client of Drishti Powertech
Tata Power – industrial client of Drishti Powertech
Indian Railways – industrial client of Drishti Powertech
IFFCO – Indian Farmers Fertiliser Cooperative, industrial client of Drishti Powertech
Super Smelters Limited – industrial client of Drishti Powertech
Rashmi Group – industrial client of Drishti Powertech
Shyam Steel – industrial client of Drishti Powertech
S R Rungta Group – industrial client of Drishti Powertech
MP Birla Group – industrial client of Drishti Powertech
Usha Martin – industrial client of Drishti Powertech
Shyam Metalics – industrial client of Drishti Powertech
Nuvoco Vistas Corporation – industrial client of Drishti Powertech

PTFE

Extremely low friction, wide chemical compatibility, high‑temperature tolerance.

PEEK

High strength, stiffness, and maximum temperature up to 300°C.

UHMWPE

Outstanding abrasion resistance, low friction, self‑lubricating.

PA (Polyamide)

Tough, economical back‑up ring material.

Easy Machinability

All thermoplastics processable by SEAL JET.

Filled Grades Available

Glass, carbon, bronze, or MoS₂ fillers enhance performance.

PTFE Fillers and Their Impact on Seal Wear

Virgin PTFE wears relatively quickly under load. Adding a glass fibre filler improves compressive strength and wear life. Bronze‑filled PTFE combines low friction with better thermal conductivity. SKF selects the filler package based on the application’s PV value and the mating surface material, optimising both seal life and the wear of the shaft or piston rod.

SKF product
SKF application

PEEK for Cryogenic Valve Stem Seals

At LNG temperatures (‑162°C), most polymers become brittle. PEEK retains its toughness and modulus down to these cryogenic temperatures, making it the material of choice for the primary seal in LNG loading‑arm swivel joints and cryogenic butterfly valves.