The Masters® Brush Cleaner & Preserver - trusted by artists since 1979. Made with the B&J Original Formula, it Cleans, Conditions, and Restores Paint Brushes in one step. Use with Wet or Dry Oil Paint, Wet Acrylic Pains, Watercolor Paint and Stains. Makes cleaning, conditioning, and preserving your brushes easier and better than ever before—even the finest sable brushes! This unique product works on oils, acrylics, watercolor, varnishes, stains, shellac and most synthetic finishes. It will also restore most hardened brushes to like-new condition.