The longest pot life have epoxy resins with anhydride hardeners like methyltetrahydro phthalic anhydride. Polyamide and polyaminoamides have shorter pot lifes, followed by aromatic amines, cycloaliphatic amines (mostly used IPDA) and aliphatic amines, like TETA (triethylene tetramine) with the shortest pot lifes. Special hardener are activated by high temperatures and have a long pot life for this reason. Dicyandiamide is such a latent hardener as well as micro encapsulated amine curing reagents.