Beckopox EH 625 Aliphatic polyamine adduct Cytec Surface Specialties Crosslinking / Coupling / Curing Agents Coatings Aliphatic polyamine adduct. Beckopox EH 625 is free from phenol and phenolic derivates, it is suited for very good chemical resistant coatings, e.g. for tank linings, self-levelling flooring compounds, coatings for steel constructions, as well as for adhesives and laminates. This highly reactive curing agent also gives good through curing at temperatures of 5 °C and high relative humidity, resulting in hard tack-free films. It is also used for improving the reactivity of cycloaliphatic polyamines such as Beckopox EH 637. Aliphatic polyamine adduct. Shows good chemical resistance. Used in coatings, e.g. for tank linings, self-levelling flooring compounds, coatings for steel constructions, as well as for adhesives and laminates.