Phenalkamine Hardener DH-7003 Solvent-free low temperature epoxy curing agent · 200 kg drum Overview 7003 modified phenalkamine, solvent-free curing agent intended for use as a low-temperature curing agent for liquid epoxy resin. It provides rapid curing under adverse conditions of high humidity and low temperature, together with yellowing resistance and excellent performance under high-humidity conditions. Supplied in 200 kg drums, the liquid hardener suits bulk industrial