In the recent past producers have sought to broaden the types of sealer materials available to the market, with asphalt emulsion-based products being the primary alternative. Other products ...

The sealer may or may not smell bad. "It is essential to protect all asphalt-based products with an preservative biocide at a rate of 1.5-2.0 gal. per 1,000 gal. of sealer," Dubey says.