2, gel - enter curing
The mixture begins to enter the solidified phase (also known as the ripening stage), at which point it begins to gel or "mutate". At this time, the epoxy does not work for a long time and will lose its viscosity. No interference can be made at this stage. It will turn into a hard rubber-like soft gel that you can press with your thumb.
Since the mixture is only partially cured at this point, the newly used epoxy resin can still be chemically linked to it, so the untreated surface can still be bonded or reacted. In any case, these capabilities are diminishing towards a cured mixture.
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