Active or reactive epoxy thinners
These diluents participate in the reaction and form part of the non-volatile binder. These diluents are non-volatile and do not evaporate. These low-viscosity liquids, when mixed with the original resin, reduce the final viscosity. In addition, the diluents improve the resin flexibility and the air bubbles formed leave the reaction faster.
Inactive epoxy thinners
These diluents do not react and are volatile and usually have high evaporation. These solvents reduce viscosity and cause problems such as reduced final strength after drying, risk of fire, evaporation and risk of poisoning by it.