Sherwin Williams Paint Coupon – Save 30% On Paint This post may contain affiliate links. Please see the full disclosure policy here. Posted on June 6, 2014 Written by Mary Leave a Comment Project??? Remodeling?? Check out this new Sherwin Williams PAINT COUPON – save 30% on paint and 15% on supplies. Print now-use now or later. This is a high value coupon for paint!