METHOD TO ACHIEVE IMPROVED ADHESION OF URETHANE ADHESIVE TO A PAINTED SURFACE

摘要

In one aspect, the present invention is a method for treatment of a painted or glass surface so as to provide improved adhesion of a urethane adhesive applied thereafter, comprising the steps of applying a pre-wipe solution to the surface, the pre-wipe solution comprising a hydrocarbyl substituted aromatic sulfonic acid and a solvent for the acid which is soluble in the solvent; and allowing the solvent to evaporate. In a second aspect, the present invention is a pre-wipe composition comprising from 0.5 percent to 10.0 percent by weight of the acid and from 90.0 percent to 99.5 percent by weight of solvent for the acid.