“Removing stains from concrete can be a real ... driveway or patio from stains by applying a good quality concrete sealer. Doing so creates a barrier that prevents oils and other liquids from ...

Another benefit of the Coval Polished Concrete Sealer is that once it is applied, it does not require a complete removal of the entire surface because of wear in high traffic areas, typically in 2 ...

with removal by a dry cloth, and spray paint and permanent marker graffiti can be removed with acetone over 48 hours later. The Coval Polished Concrete Sealer (PCS) by Coval Technologies won’t ...