Corotech reg; Waterborne Bonding Primer is a one-component bonding primer that may also be used as a rust inhibitive universal primer. This product bonds to various metals creating a solid foundation for finishing coats. This product may be finish coated with a wide variety of coatings including alkyds, acrylics, epoxies, urethanes and moisture cured urethanes. Because of it rsquo;s versatility on all metals, Waterborne Bonding Primer will replace traditional wash coat primers and offers a safer to use alternative for all projects. This product is a high performance coating specifically designed for application directly to ferrous and non-ferrous metal substrates. It provides corrosion resistance as well as primary adhesion. It will tightly bond to Steel, Chrome, Brass, Copper, Aluminum, Galvanized Metal, Stainless Steel [when used on stainless steel or cold rolled steel, it is imperative that there be a surface profile of at least 1 mil and that it be jagged in nature]. It may be left uncoated for up to 3 months at 77 deg;F prior to finish coating in interior applications. In exterior applications, if more than 2 weeks elapse, the primer film should be cleaned to remove any chalk that may have formed.