Wacker Elastosil® R 755/60 Silicone Rubber

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Wacker Elastosil® R 755/60 Silicone Rubber
Categories:	Polymer; Thermoset; Silicone; Silicone Rubber
Material Notes:	Silicone rubber grade developed specifically for manufacturing articles with good steam resistance. Application: ELASTOSIL® R 755/60 is suitable both for extrusion of tubings and profiles and for compression, transfer and injection molding. Although most silicone rubbers show good resistance to boiling water, they degrade rapidly when subjected to superheated steam at temperatures of 160 °C and above (corresponding to 6 bar pressure) ELASTOSIL® R 755/60 resists steam at a temperature of 160 °C for over 2 months. Information provided by Wacker Chemie AG.
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Physical Properties	Original Value	Comments

Density	1.18 g/cc	ISO 1183-1 A

Mechanical Properties	Original Value	Comments
Hardness, Shore A	58	before steam storage with cure agent E
	58	curing Agent E; DIN 53505 A
	61	curing Agent C1; DIN 53505 A
	61	before steam storage with cure agent C1
	61 @Treatment Temp. 160 °C, Time 5.18e+6 sec	steam autoclave, cure agent E
	64 @Treatment Temp. 160 °C, Time 5.18e+6 sec	steam autoclave, cure agent C1
Tensile Strength at Break	7.20 MPa	before steam storage with cure agent C1
	7.60 MPa	curing Agent E; DIN 53504 S1
	7.80 MPa	curing Agent C1; DIN 53504 S1
	8.20 MPa	before steam storage with cure agent E
	2.80 MPa @Treatment Temp. 160 °C, Time 5.18e+6 sec	steam autoclave, cure agent E
	3.30 MPa @Treatment Temp. 160 °C, Time 5.18e+6 sec	steam autoclave, cure agent C1
Elongation at Break	242 %	before steam storage with cure agent E
	253 %	curing Agent E; DIN 53504 S1
	310 %	curing Agent C1; DIN 53504 S1
	313 %	before steam storage with cure agent C1
	147 % @Treatment Temp. 160 °C, Time 5.18e+6 sec	steam autoclave, cure agent E
	162 % @Treatment Temp. 160 °C, Time 5.18e+6 sec	steam autoclave, cure agent C1
Rebound	53 %	curing Agent C1; DIN 53512
	53 %	curing Agent E; DIN 53512
Tear Strength	15.0 kN/m	curing Agent E; ASTM D624 B
	16.0 kN/m	curing Agent C1; ASTM D624 B
Compression Set	15 % @Temperature 175 °C, Time 79200 sec	curing Agent C1; DIN ISO 815-B
	50 % @Temperature 175 °C, Time 79200 sec	curing Agent E; DIN ISO 815-B

Processing Properties	Original Value	Comments
Cure Time	10.0 min @Treatment Temp. 135 °C	post cured 4h/200°C, E crosslinker
	15.0 min @Treatment Temp. 165 °C	post cured 4h/200°C, C1 crosslinker

Descriptive Properties
Appearance	opaque

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PWACK9234 / 204763

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