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Liquid Silicone Rubber: Extensible, but Strong

Liquid Silicone Rubber (LSR) is often utilized for seals, valves and diaphragms, due to its high elongation (between 400 and 700% at room temperature) and tensile strength over a wide temperature range. The tensile properties of thermoset rubbers and thermoplastic elastomers need to be measured/tested in order to verify that the quality control standards of Silicone Rubber Liquid are met, as well as to determine whether or not the material is fit for its purpose. The test should be performed according to ASTM D412, which describes two test methods: A and B.

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