Asphalt Seal Coating
Since asphalt is a petroleum-based product, other petroleum products may react with the surface. This includes vehicle oil and gasoline. Seal coating your asphalt product acts as a barrier against those materials. A seal coat is not a crack-filling agent; this must be done prior to applying the seal coat. Seal coating may reduce the friction or anti-skid properties associated with the exposed aggregates in asphalt. It also slows the aging process in your asphalt product.