Sealers can be classified into two types: film-forming and penetrating. Film-forming, like its name suggests, creates a membrane - or film - on the surface of the concrete. These sealers do not ...

wet sealer film. At a typical coverage rate of 300 square feet per gallon, one coat of an acrylic concrete sealer should be about 5 mils thick when wet. When dry, one coat of sealer is only about ...