Sealcoating your parking lot can be one of the most important factors in your pavement maintenance program. Sealcoating can protect your asphalt from:
Resists oil and gas spills.
This is especially important on pavement where a large volume of cars are parked. Any oil or fluids can soften or dissolve the binders in the asphalt . Coal tar sealers aren't soluble in gas or oil so they will help prevent damage caused by leaks or spills. By filling surface voids, sealcoating also reduces the depth to which oil or gas can penetrate the pavement.
The sealer is a barrier between the asphalt and the elements.
Sealcoating protects the surface and fills in surface voids, reducing the pavement's exposure to oxygen, traffic and water, thus extending pavement life.
Prevents oxidation from ultraviolet rays
As the parking lot ages the asphalt binder becomes harder and thus more and more brittle. Sealcoating will slow this process down and in some cases it can reverse it slightly.