PTFE
Style 7535 - Expanded Virgin PTFE
Phelps expanded PTFE sheet is made from 100% expanded PTFE. A soft gasket material designed for high performance service in extreme caustic to acid chemicals. This material has all the benefits of Virgin PTFE sheet, but with significantly less creep and cold flow that is commonly associated with Virgin PTFE. It conforms to rough sealing surfaces, yet compresses into an extremely tough gasket that makes a tight, long lasting seal. Expanding Virgin PTFE inherently has no structural weakness because it has a uniform and highly fibrillated microstructure with equal tensile strength in all directions.
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Excellent gaskets, seals, pads material for use in extreme applications in the following industries
- Power Generation
- Pulp and Paper Industry
- Pharmaceutical, Petrochemical
- Iron and steel fabrication and manufacturing
- Distillers, Plants and Food and Beverage Industry (USDA & FDA approved)
ASTM F-36
Compressibility: 68%
Recovery: 12%
Specific Gravity: 0.85
Sealability (ASTM F-37B)
Fuel A: 0.00 m/hr leakage
Nitrogen: 0.02 m/hr leakage
Creep Relaxation (ASTM F-38)
32% @ 2120F
16% @ 730F
Great for barrow flange faces due to excellent compressibility
Expanded PTFE Inherently clean and non-toxic - fit for USDA and FDA applications
Universally employable for nearly all aplications, media, a wide temperature range
Exceptional mechanical strength allows operation with minimal creep at elevated temperatures
Flexitallic Sigma® 800
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