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Plastics & Elastomers
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Plastics & Elastomers
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ELASTOSIL® M 4641 A/B

Technical Datasheet | Supplied by Wacker
ELASTOSIL® M 4641 A/B by Wacker is a silicone rubber. Exhibits medium hardness and high tear strength. Shows outstanding resistance to casting resins, particularly polyurethanes and epoxies, for long service life of the molds. Provides fast & non-shrink cure at room temperature and outstanding resistance to concrete. ELASTOSIL® M 4641 A/B is designed for high-performance silicone mold-making compound suitable for reproducing models with undercuts in polyurethane or epoxy resins. Applicable for vacuum casting for rapid prototyping. It is a good flow, pourable and addition curing grade.
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Product Type
Silicone Rubber
Appearance
Translucent/ Colorless
Product Status
COMMERCIAL

ELASTOSIL® M 4641 A/B Properties

Flammability Properties

Value & Unit
Test Condition
Test Method
Flash Point
307 °C
(Part A)
DIN 51376
Flash Point
284 °C
(Part B)
DIN 51376
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