Epoxy systems are systems that dry with the combination reaction of epoxy resin and epoxy hardener. In order for this reaction to start, the resin and hardener must come together, and this meeting starts the reaction process, and the homogeneous mixing of the products ends the process successfully and the epoxy drying takes place. 

The case of drying in partial areas or not in partial areas is completely related to the issue of mixing the system. For details to be considered in this regard, you can review our article titled “How to Make an Epoxy Mixture”.