Wacker Elastosil® R 401/60 Silicone Rubber

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Wacker Elastosil® R 401/60 Silicone Rubber
Categories:	Polymer; Thermoset; Silicone; Silicone Rubber
Material Notes:	Vulcanizates made from this compound exhibit a unique combination of characteristics. They are noted for their good flexibility, high transparency, and mechanical properties. The compounds are easily pigmented with ELASTOSIL® PT Pigment Pastes and have good processing characteristics.. Application: Postcured parts can be used for food contact applications and are suitable for use under the Recommendation "XV. Silicones" of the BfR and FDA § 177.2600 under observance of any given limitations on extractable and volatile substances. Information provided by Wacker Chemie AG.
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Physical Properties	Metric	English	Comments

Density	1.15 g/cc	0.0415 lb/in³	ISO 1183-1 A

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	62	62	curing agent C1; DIN 53505
	81	81	curing agent E; DIN 53505
Tensile Strength at Break	11.0 MPa	1600 psi	curing agent C1; DIN 53504 S1
	11.0 MPa	1600 psi	curing agent E; DIN 53504 S1
Elongation at Break	440 %	440 %	curing agent E; DIN 53504 S1
	530 %	530 %	curing agent C1; DIN 53504 S1
Rebound	56 %	56 %	curing agent C1; DIN 53512
	57 %	57 %	curing agent E; DIN 53512
Tear Strength	24.0 kN/m	137 pli	curing agent E; ASTM D624 B
	26.0 kN/m	148 pli	curing agent C1; ASTM D624 B
Compression Set	16 % @Temperature 175 °C, Time 79200 sec	16 % @Temperature 347 °F, Time 22.0 hour	curing agent C1; DIN ISO 815-B
	31 % @Temperature 175 °C, Time 79200 sec	31 % @Temperature 347 °F, Time 22.0 hour	curing agent E; 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	10.0 min @Treatment Temp. 135 °C	0.167 hour @Treatment Temp. 275 °F	curing agent E, press cured, 4hr/200°C
	15.0 min @Treatment Temp. 165 °C	0.250 hour @Treatment Temp. 329 °F	curing agent C1, press cured, 4hr/200°C
	15.0 min @Treatment Temp. 165 °C	0.250 hour @Treatment Temp. 329 °F	curing agent C6, press cured, 4hr/200°C

Descriptive Properties
Appearance	transparent

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