PTFE back-up ring&washer
Products Details
PTFE ring size identification
Polytetrafluoroethylene (PTFE), with excellent chemical stability, corrosion resistance, sealing, high lubricating non-stick properties, electrical insulation and good aging resistance.
PTFE BACK-UP RING&WASHER is generally used in the sealing of corrosion-resistant pipelines, containers, pumps, valves, and radar, high-frequency communication equipment, and radio equipment with high performance requirements.
Products Advantages
High temperature resistance – working temperature up to 250 ℃.
Low temperature resistance – good mechanical toughness; 5% elongation can be maintained even when the temperature drops to -196°C.
Corrosion resistance – inert to most chemicals and solvents, strong acid and alkali resistance, water and various organic solvents.
Weather Resistant – Has the best aging life of any plastic.
High Lubrication – The lowest coefficient of friction among solid materials.
Non-stick – is the smallest surface tension in a solid material that does not stick to anything.
Non-toxic – It is physiologically inert, and it has no adverse reactions when it is implanted in the body as an artificial blood vessel and an organ for a long time.
Atmospheric aging resistance: radiation resistance and low permeability: long-term exposure to the atmosphere, the surface and performance remain unchanged.
Incombustibility: The oxygen limit index is below 90.
Acid and alkali resistance: insoluble in strong acids, alkalis and organic solvents (including magic acid, ie fluoroantimony sulfonic acid).
Oxidation resistance: can resist the corrosion of strong oxidants.
Acidity and alkalinity: Neutral.
The mechanical properties of PTFE are relatively soft. Has very low surface energy.
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