How to Choose an Asphalt Driveway Sealer | Home Guides ...- Coal Tar Driveway Sealer Buy ,Coal tar driveway sealers resist water, oil and gasoline and provide protection from ultraviolet rays, which can cause driveways to crack and deteriorate over time.How to Tar Driveways | Home Guides | SF GateCoal tar for driveways is a byproduct of steel manufacturing. Once this byproduct has been refined, it used to seal driveways and roofs. ... Spread the tar emulsion sealer down the driveway in ...