D.E.R 663U Epoxy resin 25036-25-3 Dow Chemical Epoxy Resins >> Bisphenol A based Coatings >> Powder Coatings Automotive OEM Automotive refinishing General Industrial /Maintenance Powder coating D.E.R.* 663U solid epoxy resin is a low molecular weight reaction product of liquid epoxy resin and bisphenol-A. D.E.R. 663U solid epoxy resin is a low molecular weight, solid epoxy resin developed mainly for use in powder coatings. It can be incorporated in both pure epoxy and epoxy/ polyester systems where the relationship between its melt viscosity and softening point properties ensures the production of homogeneous powders with good gloss, excellent flexibility and smoothness, and good storage stability. D.E.R. 663U resin can also be used in epoxy ester applications, for example, in industrial or automotive coatings. Low molecular weight reaction product of liquid epoxy resin and bisphenol-A. Used in powder coatings. Can be incorporated in pure epoxy and epoxy/ polyester systems. Provides good gloss, very good flexibility and smoothness, and good storage stability. Can also be used in epoxy ester applications such as industrial or automotive coatings. .