Warehouse Sealers: The best sealers for warehouses are concrete densifiers or industrial strength coatings. Concrete densifiers are usually sodium silicate sealers or lithium silicate sealers that will harden and dustproof concrete. They are especially used when polishing a concrete warehouse. Industrial strength coatings like urethanes and polyaspartics are used when chemical or abrasion resistance is needed. The concrete floor must be grinded before applying one of these coatings in order to maximize adhesion.
Basement Waterproofers: Silicate/Siliconate blends are necessary for waterproofing concrete basements. With the densifying characterisitcs of the silicate and the hydrophobic waterproofing barrier of the siliconate water does not stand a chance. However if the basement is composed of concrete blocks or cinderblocks a silane/siloxane sealer must be used. Look for one that is at least 20%-40% solids. Do not use a straight silicate sealer for waterproofing since it is a densifier not a waterproofer.
Driveway Sealers: Silane/Siloxanes, or industrial water based acrylics are fantastic options that will protect a driveway from mold, mildew, efflorescence and salt degradation.
Patio Sealers: Water based or solvent based acrylic sealers that will add a matte finish or high gloss shine depending on the desired finish. If the area is prone to slipperiness use a water based sealer. Acrylics are excellent choices for brick pavers as well.
Garage Coatings: Depending if a natural concrete finish is desired or a decorative coating is desired use either a silicate/siliconate sealer or an epoxy/urethane system. The silicate/siliconate will help to prevent the passage of vehicle fluids while the epoxy/urethane system will be extremely chemically and abrasion resistant. Also with an epoxy/urethane system, paint chips or decorative sand can be added for an aesthetically pleasing appearance.
Our Take: Our go to manufacturers of concrete sealers include Kretetek, Prosoco, Scofield and ChemMasters.