Wacker ELASTOSIL® R 865/70 HCR Silicone

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Wacker ELASTOSIL® R 865/70 HCR Silicone
Categories:	Polymer; Thermoset; Silicone; Silicone Rubber; Liquid Silicone Rubber (LSR)
Material Notes:	ELASTOSIL® R 865/70 offers numerous functional advantages. The material ensures superior rebound resiliency and a minimal compression set. The compounds are easily pigmentable with ELASTOSIL® PT Pigment Pastes and have good processing characteristics. The various grades (ELASTOSIL® R 865/40 - ELASTOSIL® R 865/70) can be blended in any proportion to achieve intermediate hardnesses. Application: ELASTOSIL® R 865/70 is especially designed for peroxide curing applications as calendaring molding Information provided by Wacker.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.19 g/cc	1.19 g/cc	DIN 51757

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	68	68	DIN 53505
Tensile Strength	9.10 MPa	1320 psi	DIN 53404 S1
Elongation at Break	320 %	320 %	DIN 53404 S1
Rebound	55 %	55 %	DIN 53512
Tear Strength	18.9 kN/m	108 pli	ASTM D624 B
Compression Set	9.0 % @Temperature 175 °C, Time 79200 sec	9.0 % @Temperature 347 °F, Time 22.0 hour	DIN ISO 815-B

Processing Properties	Metric	English	Comments
Cure Time	15.0 min @Temperature 165 °C	0.250 hour @Temperature 329 °F	0.5% ELASTOSIL® AUX Crosslinker C6; Post-Cured 4h/200 ºC

Descriptive Properties
Appearance	Translucent

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PWACK9919 / 197518

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