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ELASTOSIL® M 4440

Technical Datasheet | Supplied by Wacker

ELASTOSIL® M 4440 by Wacker is a good flow, RTV-2, pourable, condensation curing, two-component silicone rubber. Exhibits self-deaeration and medium hardness. Offers very good resistance to casting resins. It can vulcanize at room temperature. ELASTOSIL® M 4440 is designed for molding applications.

ELASTOSIL® M 4440 Properties

Mechanical Properties

Value & Unit

Test Condition

Test Method

Tensile Strength

2.50 N/mm²

(3 wt % Catalyst T 37, Cured: 4 days/ 23 °C, 50% RH)

ISO 37

Tear Strength

4.5 N/mm

(3 wt % Catalyst T 37, Cured: 4 days/ 23 °C, 50% RH)

ASTM D 624 B

Hardness, Shore A

(3 wt % Catalyst T 37, Cured: 4 days/ 23 °C, 50% RH)

ISO 868

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