GPA-300 Graffiti Proofer is a nonstick coating that exceeds performance requirements set by the ASTM 6578 Graffiti Resistance Test. The dry film applies easily and cures quickly. It won't let paint, permanent markers, stickers, or any other markings bond to it. Further, if damaged, respraying the surface with relatively no preparation easily repairs it. It is water-clear, UV stable, heat stable to over 500°F, and resists chemicals.

SEI Chemical, 19215 Parthenia St., Northridge, CA 91324, (818) 998-3538,