Technical datasheet

ELASTOSIL® RT 773

Supplied byWacker- Last Updated on Feb 19, 2026

ELASTOSIL® RT 773 by Wacker is a non slump, thixotropic two-part condensation curing silicone rubber. It offers medium to fast-curing, compressibility, low density, primerless adhesion to many substrates (glass, ceramics, metals, plastics and powder coatings) and medium hardness. It is a general purpose grade. It is recommended for appliances, automotive and electrical industry. ELASTOSIL® RT 773 can be processed by vulcanization. It provides long-term stability, weatherability and resistance against UV radiation.
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ELASTOSIL® RT 773 properties

Mechanical properties

PropertiesValue & unitTest conditionTest method
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
Tensile Strength0.0 Visible After LoginVisible After LoginVisible After Login

Other properties

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Viscosity, Dynamic0.0 Visible After LoginVisible After LoginVisible After Login
Viscosity, Dynamic0.0 Visible After LoginVisible After LoginVisible After Login

Physical properties

PropertiesValue & unitTest conditionTest method
Density0.0 Visible After LoginVisible After LoginVisible After Login
Density0.0 Visible After LoginVisible After LoginVisible After Login

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