Max Block™ is the next generation of water-based primers formulated to provide advanced stain blocking properties when compared with other typical water-based primers. Provides a lower VOC option in lieu of an alkyd-based stain blocking primer. Dries fast and provides a mildew resistant coating. Delivers hiding capabilities and excellent sealing and holdout
for a uniform finish. Specifically formulated to lock in tannin stains, preventing bleed-through. Blocks and seals common household stains, water stains, smoke damage, crayon, markers, lipstick, ball point pen and more.