As rubber ages, it hardens. This happens when the softening chemicals called “plasticizers” bleed out. The hardening process can take years, but it can be reversed before the rubber gets so brittle that it crumbles. Plasticizers keep rubber in a pliable state for better utility. Silicone spray contains the plasticizers needed to restore hardened rubberContinue reading “How to Soften Hard Rubber”
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