KBS Coatings 65100 Gray Xtreme Temperature Coating Zinc Silicon Primer, 12 oz (Aerosol) XTC Silicone Zinc Primer prevents corrosion of metal surfaces exposed to high heat, high humidity, condensation and salt air XTC Silicone Zinc Primer functions much like galvanizing as it locks itself to bare metal surfaces leaving a perfect primed surface for top coating XTC Silicone Zinc Primer can be used alone as a finish paint XTC Primer withstands temps in excess of 1200 Degree F (648 Degree C) XTC Silicone Zinc Primer is Gray in color