Technical datasheet

Rebound™ 40

Supplied bySmooth-On- Last Updated on Feb 17, 2025

Rebound™ 40 by SmoothOn is an easy-to-use, brushable, harder and less flexible, self-thickening, platinum-cure silicone rubber. It can be applied with a brush or spatula to vertical surfaces without sagging and will cure with negligible shrinkage to a flexible rubber. Compatible with Rebound™ 25. It has a long library life. Designed for making brush-on molds with deep undercuts for casting wax, gypsum, concrete and resins including urethane and polyester. Applications include reproducing sculpture, architectural restoration, making candle molds and casting pewter. Rebound™ 40 is mixed 1A:1B solution by volume or weight.
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Rebound™ 40 properties

Mechanical properties

PropertiesValue & unitTest conditionTest method
Elongation at Break0.0 Visible After LoginVisible After LoginVisible After Login
Hardness, Shore A0.0 Visible After LoginVisible After LoginVisible After Login
Tear Strength0.0 Visible After LoginVisible After LoginVisible After Login
Tensile Strength0.0 Visible After LoginVisible After LoginVisible After Login

Physical properties

PropertiesValue & unitTest conditionTest method
Cure Time0.0 Visible After LoginVisible After LoginVisible After Login
Density0.0 Visible After LoginVisible After LoginVisible After Login
Linear Mold Shrinkage0.0 Visible After LoginVisible After LoginVisible After Login
Pot Life0.0 Visible After LoginVisible After LoginVisible After Login
Specific Volume0.0 Visible After LoginVisible After LoginVisible After Login

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