Bisphenol A Solid Epoxy Resin (EEW 1750-2100)

Bisphenol A Solid Epoxy Resin (Grade 1007, EEW 1750-2100 g/eq) is a high-molecular-weight solid epoxy resin equivalent to DER 664, Araldite GT 7071, and Epikote 1007. With polymerization degree n≈9-11, this resin is a brittle solid at ambient temperature with a softening point of 100-120°C. The very high molecular weight provides excellent flexibility in coatings and, combined with polyester or acrylic resins, produces thermosetting coating systems with outstanding impact resistance and adhesion.

This grade is primarily used as the epoxy component in hybrid thermosetting powder coatings (60/40 or 70/30 polyester/epoxy hybrid) for outdoor metal applications, where the high molecular weight provides superior adhesion and corrosion barrier versus lower molecular weight grades. The relatively low epoxy content (EEW 1750-2100) provides very long open time and excellent flow in powder coating applications.

Additional applications include can and coil coating formulations, flexibilizing agent for high-performance coatings, and as a resin modifier to improve impact resistance and adhesion in construction epoxy systems. Chemical resistance is moderate — suitable for mild chemical and corrosion environments but not for solvent or strong acid service.