INTRODUCTION:
Expanded PTFE sheet (Soft Fibration PTFE sheet) is made of 100% PTFE through a special process. It is made up of countless homogeneous, fine, soft, multidirectional fibers. It has high tensile strength, low creep, high and low temperature resistance, corrosion resistance, no asbestos, no additives, non-resistance. It also comply with FDA requirements. After compression, its fiber tangles mutually, and becomes more closer, airtight, watertight and better performance of anti leakage. Under severe corrosive environment and high temperature, it can still maintain exnt sealing.
APPLICATIONS:
It is used as sealing material for various kinds of flanges. It can be used in chemical industry, food industry, rmacy industry, semiconductor industry, aerospace industry, petrochemical industry, paper industry, ship-building industry and medical equipment.
TECHNICAL PROPERTIES
Temperature range: -260℃--+260℃
Operating pressure: vacuum to 207kg/cm2(3000psi)
Chemical resistance: (0-14) except motten alkali metals and e.
Stability: no subject to aging, store indefinitely, and free from contamination.
Low creep: easy to install and fasten. After construction, it is not easy to be deformed.
Safety: complies with FDA21 CFR177.1550
It is the ideal products for food and rmaceutical industries.
Its superior compliance depends that it can be used for crude or damaged flanges.
SPECIFICATIONS FOR SHEET
0.5MM*1520MM*1520MM | 3.0MM*1520MM*1520MM |
1.0MM*1520MM*1520MM | 4.0MM*1520MM*1520MM |
1.5MM*1520MM*1520MM | 5.0MM*1520MM*1520MM |
2.0MM*1520MM*1520MM | 6.0MM*1500MM*1500MM |
2.5MM*1520MM*1520MM | 7.0MM*1500MM*1500MM |
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THICKNESS | SEALABILITY (ml/hr) | COMPRESSION RATIO (%) | ELASTIC RESILIENCE RATIO (%) | STRESS RELAXATION RATIO(%) |
0.8MM | 0.06 | 63.6 | 8.8 | 16.3 |
2.0MM | 0.17 | 63.4 | 9.1 | 37.1 |
STANDARD | ASTM F37B | ASTM F36 | ASTM F36 | ASTM F38 |
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NOTE: TESTING RESULT (TAKE 0.8MM AND 2MM SHEET FOR EXAMPLE ACCORDING TO ASTM)
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