The finest house paint on the market won’t last a season if applied over dirt or cracked, peeling paint. Similarly, the finest concrete stains and overlays won’t last if applied to ill-prepared slabs. In addition to following the manufacturer’s directions, you should make sure of the following: These products are designed to go over plain concrete—no sealers, waxes, or curing agents. The concrete must be really clean and the surface profiled, meaning open and porous. And although engineered to adhere to concrete, most products stick to everything, so protect the areas surrounding your work.
Learn more about concrete overlays from Rich Cofoid in FR26 Decorative Overlays—Options and Opportunities.