D.E.R 684-EK40

Epoxy resin 25036-25-3

Dow Chemical

环氧树脂 >> 2,2-双羟基苯基丙烷 Epoxy Resins >> Bisphenol A based 海洋 /防腐/保护 >> 海洋运输 Marine /Anti-Corrosive / Protective >> Marine 海洋 /防腐/保护 >> 重型 (防腐) Marine /Anti-Corrosive / Protective >> Heavy duty (anti-corrosive) 汽车原始设备制造商OEM Automotive OEM 汽车表面整修 Automotive refinishing 罐涂层 Can Coating 线圈涂层 Coil Coating 常规工业维护 >> 雷管 General Industrial /Maintenance >> Primer 常规工业维护 >> 顶漆/一层漆处理 General Industrial /Maintenance >> Topcoat / One-coat finishes 金属 >> 顶漆 >> 清涂层 Metal >> Topcoat >> Clearcoat MEK D.E.R.* 684-EK40 epoxy resin solution is an ultra high molecular weight solid reaction product of epichlorohydrin and bisphenol-A dissolved in methyl ethyl ketone . D.E.R 684-EK40 epoxy resin solution provides coatings with outstanding physical and chemical resistance properties by solvent evaporation alone. Products formulated with D.E.R. 684-EK40 resins offer the hardness, flexibility, toughness, adhesion and chemical resistance properties of epoxy resins in a convenient lacquer form. D.E.R. 684-EK40 epoxy resin solution has essentially no epoxy functionality but can be crosslinked through the hydroxyl groups along the polymer backbone. Crosslinking materials of the urea, melamine, phenolic and polyisocyanate types may be used. Once cross-linked with hardeners these systems have improved solvent resistance, improved resistance to some chemicals and improved hot-water resistance. Ambient cured thermoplastic coatings based solely on D.E.R. 684-EK40, when properly formulated, can also provide excellent flexibility, moisture barrier properties, and good adhesion to a variety of substrates. Because of the high molecular weight and the hydrogen bonding tendencies of D.E.R. 684, solvent release can sometimes be a problem. Clear films of this resin at a thickness above 25 µm should be force dried to remove traces of solvent and obtain optimum properties. Pigmented films offer improved solvent release, however, optimum properties are obtained by force-drying. D.E.R. 684-EK40 based coatings can be used in maintenance primers and topcoats, flash primers, shop coats, wire enamels, road markers (primers) and as clear coatings for brass, chrome and aluminum. Automotive Coatings Can Coating Coil Coating Marine & Protective Coatings Ultra high molecular weight solid reaction product of epichlorohydrin and bisphenol-A dissolved in methyl ethyl ketone. Used in maintenance primers and topcoats, flash primers, shop coats, wire enamels, road markers (primers), clear coatings for brass, chrome and aluminum, automotive, can, coil, marine and protective coatings. Offers outstanding physical and chemical resistance properties, hardness, flexibility, toughnessv very good moisture barrier properties and good adhesion to a variety of substrates. Can be crosslinked by urea, melamine, phenolic and polyisocyanate.