Aliphatic amines are usually fast curing, low viscosity, and good chemical resistance to the applied system. However, it is usually modified to eliminate problems caused by the objectionable volatility of such amines. By pre-reacting, the amine with part of the epoxy resin formed Polyamine Adduct. The adduct polyamine reduced blushing tendency during cure of films, reduced toxicity, and volatility. When modified, it has a wide range of products with differing properties. The aliphatic polyamine cured system is resistant to attack by alkalies, solvents, and some inorganic acids; they are less resistant to most organic acids.