Sealing

Plastics for valve seats, seals, and gaskets

Plastic seals must have low enough stiffness to conform to mating surfaces and sufficient creep resistance to maintain tight seals. When plastic seals are in contact with moving parts, the plastic must have low enough friction and sufficient wear resistance so that the device can actuate properly throughout many cycles of use.

Additionally, the plastic has to be compatible with the operating temperature of the device and it must withstand any chemicals that it will come into contact with.

acetal-sheet-rod-tube-bw

Acetal

High strength, stiff, low friction engineering plastic with good wear properties.

vespel-plaque-rod

DuPont™ Vespel® Polyimide

Extremely high temperature creep resistant plastic with excellent friction and wear characteristics.

ectfe-halar-rod

ECTFE

Fluoropolymer with outstanding mechanical properties and dimensional stability.

ETFE in varying shapes and sizes displayed next to one another

ETFE

Plastic material with excellent mechanical strength, stiffness, and abrasion resistance.

fep-group-natural

FEP

Flexible fluoropolymer with outstanding chemical resistance and electrical properties.

pctfe-group-white

PCTFE

Fluoropolymer with outstanding dimensional stability, mechanical properties, and temperature range.

peek-sheet-rod

PEEK

Strong, stiff plastic with outstanding chemical resistance; performs over a wide range of temperatures.

pfa-group-white

PFA

Flexible fluoropolymer that performs well in extreme temperature and harsh chemical environments.

ptfe-group-white

PTFE

Low friction engineering plastic with outstanding chemical, high temperature, and weathering resistance.

pvdf-sheet-natural

PVDF

High purity engineering plastic with excellent chemical, abrasion, and flame resistance.

acetal-sheet-rod-tube-bw

Acetal

High strength, stiff, low friction engineering plastic with good wear properties.

vespel-plaque-rod

DuPont™ Vespel® Polyimide

Extremely high temperature creep resistant plastic with excellent friction and wear characteristics.

ectfe-halar-rod

ECTFE

Fluoropolymer with outstanding mechanical properties and dimensional stability.

ETFE in varying shapes and sizes displayed next to one another

ETFE

Plastic material with excellent mechanical strength, stiffness, and abrasion resistance.

fep-group-natural

FEP

Flexible fluoropolymer with outstanding chemical resistance and electrical properties.

pctfe-group-white

PCTFE

Fluoropolymer with outstanding dimensional stability, mechanical properties, and temperature range.

peek-sheet-rod

PEEK

Strong, stiff plastic with outstanding chemical resistance; performs over a wide range of temperatures.

pfa-group-white

PFA

Flexible fluoropolymer that performs well in extreme temperature and harsh chemical environments.

ptfe-group-white

PTFE

Low friction engineering plastic with outstanding chemical, high temperature, and weathering resistance.

pvdf-sheet-natural

PVDF

High purity engineering plastic with excellent chemical, abrasion, and flame resistance.

Not sure which materials best fit your needs?

Our experienced sales and technical teams are available to assist you with material selection challenges.

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