Acting as a waterproofing membrane, sealcoating seals small surface cracks that, over-time, can progress into larger cracks allowing water to penetrate below the surface, washing away the base material of asphalt. The intrusion of water into the base layer can result in even more cracking, growing more and more rapidly over time.

Additional benefits of sealcoating include protection against oxidation, UV Rays, chemical spills and fuel from motor vehicles which can eat away at the surface of the asphalt. In addition to its protective and preventative nature, sealcoating dries to a pitch-black color, improving the look of older pavement.

Sealcoating helps shield asphalt from colder climate locations with snow and ice, which can take a take a toll on the condition of the pavement. In colder climate locations, moisture from rain and snow can freeze, expanding and contracting. Salt is frequently used on roads in these colder areas, which can break down asphalt bonds.