The Chemist’s message : have you ever heard about stage B ?
Depending on the product and the on raw material used in the formulation, some epoxy and polyurethane systems can be affected by what is called “Stage B “.
In this case, systems are characterized by a great fragility after 24 hours as if they were mere glass. This physical state occurs when the level of polymerization is not completed between the resin and the hardener. Depending on the systems, it may be necessary to heat the parts directly into the silicone or polyurethane molds in order to allow for a complete polymerization.
Want to know more about the products affected by this particularity ?
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Thank you so much for the great article, it was fluent and to the point. Cheers.
Thank you. Hope It helps anyone looking for more susccessful experience with resins