| 摘要 |
<p>PURPOSE:To obtain a rubber product having a small adhesive force to glass or coated sheet metal, by applying a rubber primer containing a curing catalyst for the surface layer to a rubber base material, curing the surface layer, applying a curable polyurethane coating material thereto, and curing the coat. CONSTITUTION:A rubber primer containing a curing catalyst for the surface layer of a rubber base material is applied thereto, and the surface layer is cured. A curable polyurethane coating material is then applied thereto, and the coat is cured under heating. The primer is dried under heating at about 30-100 deg.C for 5sec-10min. The curing catalyst for the polyurethane is an amine or a metal salt in an amount of 0.01-0.5pts.wt. EFFECT:The polyurethane coating material can be cured at a relatively low temperature in a short time, and the production cost is reduced.</p> |
