For example, refined tar-based sealer offers the best protecting against water penetration and chemical resistance.
Asphalt-based sealer typically offers poor protection against environmental, chemical and harsher climates (salt water).
Prior to application the surface must be completely clean and dry using sweeping methods and/or blowers.
Pavement sealers are applied with either pressurized spray equipment, or self-propelled squeegee machines or by hand with a brush.
The process is typically a two-coat application which requires 24 to 48 hours of curing before vehicles can be allowed back on the surface.