Wacker Elastosil® R 756/50 Silicone Rubber

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Wacker Elastosil® R 756/50 Silicone Rubber
Categories:	Polymer; Thermoset; Silicone; Silicone Rubber
Material Notes:	ELASTOSIL® R 756/50 is a peroxide curing high consistency silicone rubber whose vulcanizates 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 756/50 is optimized for applications at high temperatures and can be used for molding applications. Vulcanizates of ELASTOSIL® R 756/50 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	Original Value	Comments

Density	1.14 g/cc	DIN 53479

Mechanical Properties	Original Value	Comments
Hardness, Shore A	50	curing Agent C1; DIN 53505
	52 @Treatment Temp. 250 °C, Time 605000 sec	Hot air aged
	65 @Treatment Temp. 250 °C, Time 3.46e+6 sec	Hot air aged
	76 @Treatment Temp. 300 °C, Time 605000 sec	Hot air aged
Tensile Strength at Break	8.50 MPa	curing Agent C1; DIN 53504 S1
	4.80 MPa @Treatment Temp. 300 °C, Time 605000 sec	Hot air aged
	6.20 MPa @Treatment Temp. 250 °C, Time 3.46e+6 sec	Hot air aged
	6.80 MPa @Treatment Temp. 250 °C, Time 605000 sec	Hot air aged
Elongation at Break	500 %	curing Agent C1; DIN 53504 S1
	130 % @Treatment Temp. 300 °C, Time 605000 sec	Hot air aged
	230 % @Treatment Temp. 250 °C, Time 3.46e+6 sec	Hot air aged
	400 % @Treatment Temp. 250 °C, Time 605000 sec	Hot air aged
Rebound	51 %	DIN 53512
Tear Strength	27.0 kN/m	ASTM D624 B
Compression Set	11 % @Temperature 175 °C, Time 79200 sec	DIN ISO 815-B

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

Processing Properties	Original Value	Comments
Cure Time	15.0 min @Treatment Temp. 165 °C	post cured 4h/200°C

Descriptive Properties
Appearance	transparent

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to go back to viewing the property data in MatWeb's normal format.

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PWACK9236 / 204765

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