(12) 16 oz. Cans. White, clay-based restorer, primer and sealer for ceiling tiles. WONDER is a unique clay based restoring system for acoustic ceiling tiles. Permanently bonds to the surface being restored without compromising acoustical sound absorption or fire-retardant value. Covers water stains, smoke and fire damage, graffiti, paint, ballpoint ink, permanent marker and rusting nail heads, avoiding the need for costly replacement. Leaves a clean, white coating that adds years to tile life. Also works as a nonbleeding primer/sealer for sign painters, a nongrain-raising primer for new wood, a base coat for wallpaper or vinyl wall coverings and as a base coat for galvanized metal.