... is white flake or pastille, melting point: ≥88°C.Specifications:AppearanceWhite flake or pastillePurity, %99 min.Melting point ... and HMDI, and is widely used for polyimide, polyester-imine insulating varnish, polyimide resin, epoxy resin hardener, heat ... applied with DDM have excellent merchanical properties, electrical insulation, high temperature resistant, radiation resistant and wear resistant ...