Precision Polymer Engineering S65G Silicone Rubber

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Precision Polymer Engineering S65G Silicone Rubber
Categories:	Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE); Silicone
Material Notes:	Low Compression Set, Green Silicone Rubber, 65-75 °IRHD. Silicone rubber having both methyl and vinyl substituent groups on the polymer chain. ASTM & ISO designation = VMQ. Applications: Low compression set grade, offering excellent heat resistance and low temperature flexibility. Used primarily for dry heat static seals, low physical strength and poor abrasion resistance prevents dynamic sealing.
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Mechanical Properties	Metric	English	Comments

Hardness, Shore A	70	70	°IRHD; ASTM D1415
	60 - 80	60 - 80	°IRHD, ±10 change after 70 hours @ 200°C; ASTM D1415
Tensile Strength, Yield	4.275 MPa	620.0 psi	-25% change after 70 hours @ 200°C; ASTM D412
	5.70 MPa	827 psi	ASTM D412
Elongation at Break	82.5 %	82.5 %	-45% change after 70 hours @ 200°C; ASTM D412
	150 %	150 %	ASTM D412
Compression Set	15 % @Temperature 175 °C, Time 86400 sec	15 % @Temperature 347 °F, Time 24.0 hour	ASTM D395

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	250 °C	482 °F
Minimum Service Temperature, Air	-60.0 °C	-76.0 °F
	-60.0 °C	-76.0 °F	Non-brittle after 3 minutes
Flash Point	>= 300 °C	>= 572 °F

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PPRECI257 / 57981

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