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Greene Tweed CHEMRAZ® 644 Perfluoroelastomer

Category Polymer , Thermoset , Fluoropolymer, TS , Thermoset Fluoroelastomer , Rubber or Thermoset Elastomer (TSE)
Manufacturer Greene Tweed
Trade Name CHEMRAZ®
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Greene Tweed CHEMRAZ® 644 Perfluoroelastomer.pdf
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Material Notes:
Specifically developed to meet the demands of aggressive dry plasma systems and the corresponding remote O2 cleaning processes, Chemraz® 644, a perfluoroelastomer with a unique formulation, provides enhanced plasma resistance and minimal contamination resulting in less downtime and higher wafer processing yields. Recommended primarily for both static and dynamic oxide etch wafer processing applications, Chemraz 644 remains stable at service temperatures up to 315°C (600°F).Applications:Endpoint windowsBell jar sealsValve sealsKF fitting sealsWindow sealsIsolator valve sealsLid sealsGas inlet sealsSlit valves sealsChamber sealsInformation provided by Greene Tweed.
Physical Properties Metric English Comments
Specific Gravity 2.03 g/cc
2.03 g/cc
ASTM D297
Mechanical Properties Metric English Comments
Hardness, Shore A 75
75
ASTM D2240
Tensile Strength at Break 12.37 MPa
1794 psi
ASTM D1414
Tensile Strength, Yield 2.25 MPa
326 psi
@50% Elongation; ASTM D1414
4.36 MPa
633 psi
@100% Elongation; ASTM D1414
Elongation at Break 207 %
207 %
ASTM D1414
Compression Set 25 %
25 %
70 hours @ 400°F (204°C) @ 25% deflection; ASTM D395
Thermal Properties Metric English Comments
Maximum Service Temperature, Air 157 °C
315 °F
Minimum Service Temperature, Air -20.0 °C
-4.00 °F
Descriptive Properties Value Comments
Color Dark Green
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