Wacker Elastosil® R plus 4305/50 batch Silicone Rubber

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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.

Wacker Elastosil® R plus 4305/50 batch Silicone Rubber
Categories:	Polymer; Thermoset; Silicone; Silicone Rubber
Material Notes:	ELASTOSIL® R plus 4305/50 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 4305/50 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 4305/50 is intended for fabrication of extruded articles that afford high transparency and very good tear resistance values. Information provided by Wacker Chemie AG.
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Physical Properties	Metric	English	Comments

Density	1.11 - 1.14 g/cc	0.0401 - 0.0412 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	50	50	ASTM D2240
Tensile Strength at Break	11.5 MPa	1670 psi	ASTM D412
Elongation at Break	850 %	850 %	ASTM D412
Tear Strength	40.0 kN/m	228 pli	ASTM D624
Compression Set	15 % @Temperature 175 °C, Time 79200 sec	15 % @Temperature 347 °F, Time 22.0 hour	WSTM 1114

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
Pot Life	1440 min	1440 min	WSTM 2299

Compliance Properties	Metric	English	Comments
USP Class VI	Yes	Yes

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 view all the property values for this datasheet as they were originally entered into MatWeb.

PWACK9285 / 204814

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