Question: I attempted to add new rubber to an already cured urethane rubber mold and the new layer delaminated. What happened and how can I get the rubber to stick?

Answer: A. New liquid urethane rubber does not bond well to fully cured urethane rubber. Some urethane rubbers (such as PMC 121tm WET) will not bond to themselves under any circumstances because they exude an oil to aid in the release of plaster and concrete. Other urethane rubbers (such as our Brush-On™ Series, Vytaflex™ or Reoflex™ DRY) will stick to... Read More»

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