With two-pack epoxies, where the curing mechanism is an internal chemical reaction, full cure could take months. There are many chemicals reacting with each other to form a highly cross-linked network, turning liquid into solid.
In reality, full cure is usually defined as the time it takes for the product to meet all of its required end-use properties. This is usually around 7-30 days depending on the temperature during cure.
Epoxy-based products may appear to be cured, i.e. they are dry on the surface, but they may not have reacted fully throughout the paint film. Therefore it is important that the recommended overcoating times are followed.
Below are a few pointers for you to consider:
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