KILZ 3 PREMIUM primer is a superior quality, fast drying, low odor, very low VOC, water-based primer-sealer-stainblocker. It has excellent adhesion and provides a mildew resistant coating making it ideal for use in moisture-prone areas. KILZ PREMIUM primer blocks most medium to heavy stains caused by water, tannin, ink, pencil, felt marker and grease. Its thicker high hiding formula hides surface imperfections and prepares the surface better for painting.