Wacker ELASTOSIL® R plus 4105/70 Solid Silicone Rubber-Batch Grade

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USP Class VI Approved Adhesives for Medical Device Applications
Master Bond’s biocompatible adhesives are designed to meet the needs of medical device manufacturers. Compounds withstand various types of sterilization methods.

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Wacker ELASTOSIL® R plus 4105/70 Solid Silicone Rubber-Batch Grade
Categories:	Polymer; Thermoset; Silicone; Silicone Rubber; Liquid Silicone Rubber (LSR)
Material Notes:	ELASTOSIL® R plus 4105/70 HCR silicone rubbers are addition-curing, two part compounds (batch grades). The vulcanizates show excellent transparency and good to very good mechanical properties. Properly postcured vulcanizates of ELASTOSIL® R plus 4105/70 comply with BfR and FDA food contact regulations. The material also passes USP XXIII Class VI and ISO 10993 certification is available. Application: ELASTOSIL® R plus 4105/70 is intended for fabrication of extruded articles that afford high transparency and very good tear resistance values. Information provided by Wacker.
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Physical Properties	Original Value	Comments

Specific Gravity	1.15 - 1.19 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Shore A	70	ASTM D2240
Tensile Strength	9.00 MPa	ASTM D412
Elongation at Break	600 %	ASTM D412
Tear Strength	250 pli	die B; ASTM D 624
Compression Set	26 % @Temperature 175 °C, Time 79200 sec	WSTM 1114

Optical Properties	Original Value	Comments
Transmission, Visible	90 %	Transparent, but not quantified

Processing Properties	Original Value	Comments
Cure Time	15.0 min @Temperature 165 °C	press cured, post cured 4 h/200 °C in ventilated air
Pot Life	360 min	WSTM 2299

Compliance Properties	Original Value	Comments
USP Class VI	Yes

Descriptive Properties
Appearance	Transparent	WSTM 1279

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PWACK9936 / 197535

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