He says sealer purchased in 55-gal. drums can also be kept over the ... Dubey says that when properly cared for both asphalt-based sealer and coal-tar-based sealer will last the winter and can ...

"We recommend that before they put an asphalt-based sealer into a tank that contains coal tar that the tank contains no more than 10% coal tar," Conwell says. "For a 500-gal. tank they should get ...

Providing a long-lasting invisible coat, this water-based, eco-friendly sealer protects against cracking and water damage. A ...