Sirgel Resin HTW-615 is an aqueous, nonionic dispersion of solid epoxy resin with a Durran’s melting point of 75 to 85 °C and an epoxide equivalent weight of 550 to 650. Mechanically stable, Sirgel Resin HTW-615 is supplied with a moderate viscosity. There are no organic solvents present. Due to its 100% water reducibility, Sirgel Resin HTW-615 offers a broad latitude for viscosity reduction. Since this dispersion is thixotropic, the viscometer’s spindle speed affects the viscosity values.