PTFE Gaskets and Jointings

PTFE Gaskets and Jointings

PTFE provides excellent thermal insulation and is the most chemically resistant plastic known.  It is unaffected by most corrosive liquids, vapors and gases, and conforms to both FDA and AMS specifications.  PTFE will insulate to 500 volts per mil and does not melt.  Because of these properties, PTFE gaskets, washers and seals are used in the following industries:

• Electrical Applications
• Food, Beverage & Pharmaceutical
• Laboratories
• Petrochemical & Chemical Processing
• Semi-Conductor

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 Features

 Acid and alkali resistant

 Chemical resistant
 Has minimum friction coefficient of all know pure material

 Non-viscous, no aging

 Now molds can be made according to customers requirements.

Virgin PTFE is by far the least expensive of the three varieties, and is used in most general applications. Filled PTFE is a gasket material with a virgin PTFE base to which a substance is added during manufacture to improve the sealing characteristics of PTFE . This "filler" usually is glass or graphite particles although ceramics has sometimes been used. The resulting gasket material is strong, yet highly compressible with very good, though not universal, chemical resistance.

Expanded PTFE is virgin PTFE to which a stress resistance has been added by means of molecular rearrangement during manufacture. This process ensures that the molecular chains from which the PTFE is constructed, do not arrange themselves into set patterns. This means that expanded PTFE possesses no structural weakness (grain) and expands and contracts equally in all directions. Because no additives are required, expanded PTFE also possesses the unique chemical resistance of virgin PTFE.

Product Categories : PTFE Products > Other PTFE Products