Equinox petroleum based asphalt sealer actually penetrates the surface of the asphalt (soaks in) keeps the surface from raveling.(loose rocks on the surface) drying out! Adds years of life to your asphalt! All other sealer types are water based and do little for your asphalt lays on the surface and beautifies while your asphalt is getting brittle underneath. Call today for a free sample we will come out put down a small sample along with a written estimate free. We fill cracks with melted rubber prior to sealing. We use a double coat system.