Greene Tweed CHEMRAZ® 655 Perfluoroelastomer

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Greene Tweed CHEMRAZ® 655 Perfluoroelastomer
Categories:	Polymer; Thermoset; Fluoropolymer, TS; Thermoset Fluoroelastomer; Rubber or Thermoset Elastomer (TSE)
Material Notes:	Chemraz® 655 is Greene Tweed’s high-temperature off-white perfluoroelastomer. Specifically developed for wafer processes with operating temperatures up to 315°C (600°F), Chemraz 655 provides excellent chemical resistance with minimal particle generation. Available in a wide range of geometries and cross sections, this material offers the diversity required for a variety of dynamic or static dry processing applications. Applications: Door seals Slit valves Window seals Isolator valve seals Lid seals Gas inlet seals KF fitting seals Chamber seals Valve seals Endpoint windows Information provided by Greene Tweed.
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Physical Properties	Metric	English	Comments

Specific Gravity	2.11 g/cc	2.11 g/cc	ASTM D297

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	82	82	ASTM D2240
Tensile Strength at Break	12.9 MPa	1870 psi	ASTM D1414
Tensile Strength, Yield	4.14 MPa	600 psi	@50% Elongation; ASTM D1414
	7.17 MPa	1040 psi	@100% Elongation; ASTM D1414
Elongation at Break	190 %	190 %	ASTM D1414
Compression Set	15 % @Temperature 204 °C, Time 252000 sec	15 % @Temperature 400 °F, Time 70.0 hour	At 25% deflection; ASTM D395

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	316 °C	600 °F
Minimum Service Temperature, Air	-20.0 °C	-4.00 °F

Descriptive Properties
Color	Off-White

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PGREEN31 / 42325

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