3M™ Scotchcast™ Electrical Resin 235 system is a low-viscosity resin. This low-viscosity resin is well suited to a variety of general purpose, Class B (130 °C) applications. Its low viscosity and good wetting characteristics allow complete impregnation of even small coils, and it has the mechanical strength and flexibility needed for high-quality insulation of large castings, such as motors, transformers and coils. - 3M™ Scotchcast™ electrical resin 235 system has permanent semiflexibility, thermal shock and impact resistance, good electrical and adhesion properties.