Kwikure Epoxy Primer is a hi-solids catalyzed primer that meets all current air regulations. It is a National Rule and SCAQMD Rule 1151 compliant primer. This primer is designed to be the first primer applied to bare steel, aluminum, fiberglass,magnesium and galvanized surfaces. It's tenacious adhesion, hi-build,and excellent durability, water and corrosion resistance makes it a logical choice for the basis of a long lasting paint job. May be reduced up to 10% with RU-300 (8529ZP 004 QT) for improved flow out and sprayability.