| 摘要 |
Provided is a primer composition that is for metal materials, forms a primer layer having superior adhesion and film formation characteristics on the surface of various metal materials including ordinary steel, stainless steel, aluminum, aluminum alloys, copper, and zinc plating, and imparts superior adhesion strength and adhesion durability when adhered by means of an epoxy adhesive. The primer composition is applied to the surface of a metal material, is adhered by an epoxy adhesive, and contains: an epoxy resin that uses both a bifunctional epoxy resin containing at least a bisphenol A epoxy resin and a polyfunctional epoxy resin containing at least a phenolic novolac epoxy resin; a curing agent comprising a cyandiamide; a curing catalyst comprising an imidazole; and an inorganic oxide filler comprising silica and titanium oxide. |
