Wacker Elastosil® R 756/60 Silicone Rubber

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Wacker Elastosil® R 756/60 Silicone Rubber
Categories:	Polymer; Thermoset; Silicone; Silicone Rubber
Material Notes:	Vulcanizates of ELASTOSIL® R 756/60 silicone rubber possess excellent resistance to hot air, particularly after addition of heat stabilizer. The vulcanizates show good tear resistance, low compression set and are highly elastic. Application: ELASTOSIL® R 756/60 is optimized for applications at high temperatures and can be used for molding and extrusion applications. Vulcanizates of ELASTOSIL® R 756/60 in combination with ELASTOSIL® AUX Stabilizer, can withstand temperatures of 300 °C for at least seven days. Information provided by Wacker Chemie AG.
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Physical Properties	Metric	English	Comments

Density	1.16 g/cc	0.0419 lb/in³	DIN 53479

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	60	60	curing Agent C1; DIN 53505
	62 @Treatment Temp. 250 °C, Time 605000 sec	62 @Treatment Temp. 482 °F, Time 168 hour	Hot air aged
	72 @Treatment Temp. 250 °C, Time 3.46e+6 sec	72 @Treatment Temp. 482 °F, Time 960 hour	Hot air aged
	79 @Treatment Temp. 300 °C, Time 605000 sec	79 @Treatment Temp. 572 °F, Time 168 hour	Hot air aged
Tensile Strength at Break	8.50 MPa	1230 psi	curing Agent C1; DIN 53504 S1
	4.80 MPa @Treatment Temp. 300 °C, Time 605000 sec	696 psi @Treatment Temp. 572 °F, Time 168 hour	Hot air aged
	6.50 MPa @Treatment Temp. 250 °C, Time 3.46e+6 sec	943 psi @Treatment Temp. 482 °F, Time 960 hour	Hot air aged
	6.80 MPa @Treatment Temp. 250 °C, Time 605000 sec	986 psi @Treatment Temp. 482 °F, Time 168 hour	Hot air aged
Elongation at Break	400 %	400 %	curing Agent C1; DIN 53504 S1
	110 % @Treatment Temp. 300 °C, Time 605000 sec	110 % @Treatment Temp. 572 °F, Time 168 hour	Hot air aged
	210 % @Treatment Temp. 250 °C, Time 3.46e+6 sec	210 % @Treatment Temp. 482 °F, Time 960 hour	Hot air aged
	330 % @Treatment Temp. 250 °C, Time 605000 sec	330 % @Treatment Temp. 482 °F, Time 168 hour	Hot air aged
Rebound	60 %	60 %	DIN 53512
Tear Strength	27.0 kN/m	154 pli	ASTM D624 B
Compression Set	10 % @Temperature 175 °C, Time 79200 sec	10 % @Temperature 347 °F, Time 22.0 hour	DIN ISO 815-B

Optical Properties	Metric	English	Comments
Transmission, Visible	90 %	90 %	"Transparent" but manufacturer does not quantify.

Processing Properties	Metric	English	Comments
Cure Time	15.0 min @Treatment Temp. 165 °C	0.250 hour @Treatment Temp. 329 °F	post cured 4h/200°C

Descriptive Properties
Appearance	transparent

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PWACK9237 / 204766

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