Wacker Silpuran® 6400/60 A/B Liquid 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 Silpuran® 6400/60 A/B Liquid Silicone Rubber
Categories:	Polymer; Thermoset; Silicone; Silicone Rubber; Liquid Silicone Rubber (LSR)
Material Notes:	Liquid silicone rubber of the SILPURAN® 6400 series is a paste-like, easily-pigmentable two-component compound with short curing times. Their vulcanizates are noted for their high transparency and excellent mechanical and electrical properties. Especially they are noted for an excellent tear resistance according to ASTM D 624 B and DIN ISO 34-1 Method A (DIN 53507). Properties: SILPURAN® 6400/60 A/B meets selected test requirements of ISO 10993 and United States Pharmacopoeia (USP) Class VI. 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. Special features: A master file has been filed with the U.S. Food and Drug Administration. Application: SILPURAN® 6400/60 A/B is particularly suitable for the economical production of large series of injection-moulded articles. SILPURAN® 6400/60 A/B is designed for medical and pharmaceutical applications including implantation for < 30 days. Information provided by Wacker Chemie AG.
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Physical Properties	Metric	English	Comments

Density	1.13 g/cc	0.0408 lb/in³	DIN EN ISO 1183-1 A
Viscosity	430000 cP @Shear Rate 10.0 1/s	430000 cP @Shear Rate 10.0 1/s	DIN 53019
	1.30e+7 cP @Shear Rate 1.00 1/s	1.30e+7 cP @Shear Rate 1.00 1/s	DIN 53019

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	60	60	DIN 53505
Tensile Strength at Break	8.80 MPa	1280 psi	DIN 53505 S1
Elongation at Break	350 %	350 %	DIN 53505 S1
Rebound	65 %	65 %	DIN 53512
Tear Strength	14.0 kN/m	79.9 pli	DIN ISO 34-1 method A
	43.0 kN/m	245 pli	ASTM D624B
Compression Set	19 % @Temperature 175 °C, Time 79200 sec	19 % @Temperature 347 °F, Time 22.0 hour	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	5.00 min @Treatment Temp. 165 °C	0.0833 hour @Treatment Temp. 329 °F	postcuring for 4 h/200 °C in ventilated air.
	5.00 min @Treatment Temp. 165 °C	0.0833 hour @Treatment Temp. 329 °F	postcuring for 6 h/200 °C in ventilated air.

Compliance Properties	Metric	English	Comments
USP Class VI	Yes	Yes

Descriptive Properties
Color	transparent

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PWACK9494 / 205023

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