Technical datasheet

Silopren™ LSR 2740 TP 3783

Supplied byMomentive Performance Materials- Last Updated on Aug 21, 2025

Silopren™ LSR 2740 TP 3783 by Momentive Performance Materials is a two-component liquid silicone rubber. It is easily pigmented with LSR color pastes. Offers primer-less adhesion to a wide range of substrates, high thermal stability, flexibility at low temperature and excellent stability. Exhibits good aging behavior, weather resistance, good dielectric and mechanical properties. It reaches full bond strength after a short post-cure (1 h at 100°C) or by longer storage at room temperature. Designed for processing by multi-component injection, insert molding or overmolding. Silopren™ LSR 2740 TP 3783 is used in elastomeric articles like sealing elements, membranes, vibration dampening elements, spatula or other hard-soft combinations. Complies with USP Class VI, ISO 10993 and FDA 21 CFR 177.2600 regulations.
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Silopren™ LSR 2740 TP 3783 properties

Mechanical properties

PropertiesValue & unitTest conditionTest method
Compression Set0.0 Visible After LoginVisible After LoginVisible After Login
Compression Set0.0 Visible After LoginVisible After LoginVisible After Login
Elongation at Break0.0 Visible After LoginVisible After LoginVisible After Login
Hardness, Shore A0.0 Visible After LoginVisible After LoginVisible After Login
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Other properties

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Viscosity0.0 Visible After LoginVisible After LoginVisible After Login
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Physical properties

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Density0.0 Visible After LoginVisible After LoginVisible After Login

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