We use this product daily in our shop and find it to be superior in permanent rust protection for all of our weld-in panels. Por-15 is essential when doing any metal repair. It can also be painted directly onto rust to prevent spreading! (how does your battery tray look?) por-15 dries to a hammer tough finish that can easily be painted over. No other rust paint comes close to por-15. If they had dipped the old Porsches in por-15 before painting, they never would have rusted. For best results, pretreat your metal with prep & ready spray for best adhesion (part number rgr6024)



Note: por-15 is sensitive to uv light (sun) and must be top coated for prolonged exposure to sunlight.
Top coating is not required for areas not exposed to sunlight.