Most consumer-grade driveway sealers are water-based emulsions containing water, clay fillers, latex, polymers, additives and either coal tar (a byproduct of baking coal to make coke) or asphalt (a byproduct of petroleum refining). Some so-called “asphalt” emulsions also contain some coal ...
At GLAS, we only use commercial grade GEM seal coal tar emulsion or pitch black asphalt emulsion based sealer, adding a latex additive for increased sand load, faster drying, greater oil and gas resistance, deeper black color, and overall improved performance. We also add 2 lbs. of sand per...