Almost immediately after paving, the sun goes to work daily, drying out and oxidizing your pavement and making it very brittle on the surface.
The binder which holds the stone and sand together is called "liquid asphalt" which hardens to a relatively soft consitancy and its always the first to fail.
Once the liquid asphalt wears the pavement starts to ravel. Ravelling means the stones and sand particles that make up the pavement begin to jar loose. These loose stones and sand act like sand paper and combined with vehicle tires, flowing rain, sprinkler water and wind, can erode your pavement at a very fast rate.
PMM Sealcoat not only blocks the sun and its harmfull rays but it also helps to rejuvinate the asphalt by replacing the binder that it so desperately requires for a long life.