There’s a reason RUST-OLEUM Zinsser Bulls-Eye 1-2-3 water-based primer is our most popular primer. This premium, whole house primer sealer provides outstanding performance indoors and out, with low-odor, great flow and leveling and a flexible, acrylic formula.Sticks to all surfaces without sandingSeals stains, graffiti and tannin bleedMold and mildew-resistant filmRust inhibitive, great for new metal35 deg F low application temperature