SATRA STM 455 Heat resistance tester
The heat resistance tester is ideal for assessing the effects of heat on outsole and upper materials. Heat is applied to the sample via a heated square pad manufactured in copper.
When testing rubber and polymetric outsoles in accordance with the standard, the material should not melt and no cracks should develop when the tested outsole is bent around the mandrel supplied. In the same way, leather outsoles should not develop cracks or charring when bent around the same mandrel.
The heated copper pad is of constant mass and incorporates a temperature indicator. An additional weight fixed to the moving arm ensures that the same pressure is applied to all test pieces. Provision is also made for holding the copper pad above the test pieces between tests.