| 摘要 |
Waterborne primer coating composition comprising at least: (a) an aqueous epoxy resin dispersion, comprising at least one two-functional or polyfunctional epoxy resin, (b) an aqueous dispersion and/or a solution of an epoxy resin hardener, (c) aqueous bitumen dispersion, and optionally (d) fillers, pigments, additives, wherein component (b) is preferably a polyfunctional amine, which can be applied for curing at ambient temperature; and cured waterborne primer coating films on a shaped metal surface derived from said compositions. |
