Zinsser Bulls Eye 1-2-3 Primer is an all-purpose, high performance, water-based primer for interior and exterior residential, commercial and industrial applications. Bulls Eye 1-2-3 provides excellent stain blocking, is fast drying, and has excellent adhesion on glossy surfaces. High performance primer blocks and seals all water and oil-based stains caused by water, pencil, grease, nicotine, smoke, tannin and more. Features Versatile primer is ideal for interior and exterior applications on all surfaces Formulated with stain-blocking resins to hide most stains Excellent for sealing water-soluble tannin bleed on cedar and redwood Bonds to glossy surfaces without scuff sanding Primer is rust inhibitive and mold/mildew resistance Can be applied in temperatures as low as 35 degrees Fahrenheit Resists high pH surfaces (up to 12.5) and seals most porous surfaces