The Valspar Corp. said Wednesday it would buy two units from Quest Specialty Chemicals Inc. The businesses, which include an automotive-refinishes business and a smaller operation that makes industrial coatings, represent about $190 million in annual revenue. Terms of the deal weren't disclosed. Quest is based in Charleston, S.C. You can read the full Valspar release here. The announcement came as Minneapolis-based Valspar (NYSE: VAL) announced its second-quarter results. Revenue fell about 7...