D.E.R 8230-W5 Epoxy resin Dow Chemical Epoxy Resins Coatings >> Powder Coatings Powder coating D.E.R.* 8230-W5 solid epoxy resin is a low molecular weight epoxy resin containing 5 wt. % of a siloxane flow modifier. D.E.R. 8230-W5 epoxy resin is a 3- type solid epoxy resin containing 5 % of a siloxane flow modifier designed as a masterbatch resin for epoxy powder coating applications (clear or filled coatings). The siloxane flow modifier is not applied to a silica base, as is the case with traditional powder coating flow modifiers, and as such clear coatings are achievable with a high degree of clarity. Low molecular weight epoxy resin containing a siloxane flow modifier. Used as a masterbatch resin for epoxy powder coating applications (clear or filled coatings). Offers high degree of clarity.