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ELASTOSIL® RT K

Technical Datasheet | Supplied by Wacker

ELASTOSIL® RT K is a two-part condensation-curing silicone rubber by Wacker. It offers excellent flowability, good self-deaeration, medium hardness, good dielectric properties and outstanding resistance to casting resins particularly for polyurethanes. It is recommended for encapsulation of electrical and electronic components and making flexible molds. It is cured at 23°C for 4 days. ELASTOSIL® RT K is suitable as a release coat of rigid molds for casting or foaming of polyurethane resins. It is approved by REACH.

ELASTOSIL® RT K Properties

Mechanical Properties

Value & Unit

Test Condition

Test Method

Hardness, Shore A

(Cured)

ISO 868

Tensile Strength

2.0 N/mm²

(Cured)

ISO 37

Elongation at Break

130 %

(Cured)

ISO 37

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