What is Asphalt Slurry Seal?

Slurry seals are basically a topcoat applied to existing asphalt surfaces and are made from a mixture of water, asphalt emulsion, aggregate composed of finely crushed rock, and additives.

The additives may differ depending on the desired mixing properties, but tend to include polymers, which are long molecules consisting of repeating chain structures. Depending on the structure, polymers can bestow materials with desirable qualities such as high permeability or flexibility and strength.