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ELASTOSIL® RT 646 A/B

Technical Datasheet | Supplied by Wacker
ELASTOSIL® RT 646 A/B by Wacker is a two-component, castable, addition-curing, room-temperature vulcanizing silicone rubber. Exhibits high hardness, good mechanical properties, good chemical resistance, good resistance to casting resins and excellent reversion resistance. It is virtually insoluble in water. ELASTOSIL® RT 646 A/B is suitable for encapsulation of electronic components, all-round potting compound and mold making applications.
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Product Type
Silicone Rubber
CAS Number
63394-02-5
Physical Form
Liquid

ELASTOSIL® RT 646 A/B Properties

Physical Properties

Value & Unit
Test Condition
Test Method
Viscosity
110000 mPa.s
(Component A, 23°C, uncured)
ISO 3219
Viscosity
2000 mPa.s
(Component B, 23°C, uncured)
ISO 3219
Density
1.28 g/cm³
(At 23°C, Cured for 60 min at 150°C)
ISO 2781
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