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ELASTOSIL® LR 3040/50 A/B

Technical Datasheet | Supplied by Wacker

ELASTOSIL® LR 3040/50 A/B by Wacker is a two-component, paste-like, easily-pigmentable, liquid silicone rubber. Offers high tear resistance, very short curing time, excellent mechanical properties, high transparency and electrical properties. It is virtually insoluble in water. It is suitable for processing by injection molding. ELASTOSIL® LR 3040/50 A/B is suitable for membranes, molded parts for automotive & technical industries, molded seals and gasket applications. Complies with FDA § 177.2600 regulation.

ELASTOSIL® LR 3040/50 A/B Properties

Mechanical Properties

Value & Unit

Test Condition

Test Method

Elongation at Break

480 %

(Cured: 5 min, 165°C in press, Post Curing: 4 hr, 200°C in ventilated air)

DIN 53504 S1

Tensile Strength

9.00 N/mm²

(Cured: 5 min, 165°C in press, Post Curing: 4 hr, 200°C in ventilated air)

DIN 53504 S1

Tear Strength

40 N/mm

(Cured: 5 min, 165°C in press, Post Curing: 4 hr, 200°C in ventilated air)

ASTM D624B

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