A low-viscosity Novolac Epoxy Resin HWR-625 suitable for heat-resistant adhesives composite materials Technical Data Sheet Product name:Novolac Epoxy Resin HWR-625 Features: HWR-625 is a low-viscosity phenolic epoxy resin containing multifunctional resin groups with excellent bond strength, heat resistance and chemical resistance. Sale Specification & Typical Properties: Item Specification Epoxy equivalent weight (g/eq) 168~178 Viscosity (mPa .s /25℃) 20000~26000 Color