Interior/Exterior Masonry Primer Sealer
EFF-STOP® is an epoxy-fortified acrylic primer/sealer for interior and exterior masonry. EFF-STOP® Premium provides excellent alkali and efflorescence resistance on properly cured tilt-up concrete, poured-in-place concrete, stucco, and block. It can be applied to surfaces with a pH of 6 to 13.
Find a Store
Dunn-Edwards products are sold in 149 company stores and 90 dealers across Arizona, California, Nevada, New Mexico Kentucky, Montana, Oregon, Texas, Utah and Wyoming.
How to videos
Our library of how-to videos addresses an array of painting topics, including color selection, prep, application and aftercare. Check it out - you never know what great tips you might find!