NO-OX-ID "A" is a heavy duty wax based rust preventative designed for hot application methods (160-180F). Upon cooling, the resultant corrosion resistant coating is amber colored, non-drying resistant to high humidity, salt spray, acid and alkali environments. This rust proofing product has been through long term corrosion studies of 3 years humidity cabinet testing (no corrosion) testing 3 years salt spray (no corrosion) and is NSF approved.