Approximately 200 square feet per gallon. Coverage rates depend on the surface condition of the concrete. Rougher, broom-finished, porous and stamped concrete, especially older, eroded outdoor slabs, will require more product to seal properly. Two coats are recommended for outdoor concrete floors.
Consider adding Non-Slip Additive to the second coat of sealer on outdoor concrete floors.
Concrete Sealer Application
Apply with a pump-up fence and deck sprayer, HVLP sprayer or roller to smooth surfaces. Spray or use a short-napped (3/8 in. or less) roller for textured/stamped surfaces. Apply in thin coats. Do not exceed three coats of sealer. Allow each coat to dry for a minimum of 4-6 hours between coats. Applying an additional coat of sealer to a surface that is tacky, milky or has ridges will not improve the overall appearance of the floor and will only compound existing problems. Allow the final coat of sealer to dry for 24-48 hours depending on weather conditions before allowing vehicle traffic.
Note: Allow for 48-72 hours dry time for floors sealed with solvent-based sealers before applying Residential or Commercial Wax. Use xylene for tool and sprayer clean-up.