Why Seal Coat?
Harsh winters and constant weather changes begin to take their toll on
asphalt driveways, your property's appearance suffers. Worse yet, it
shortens the service life of your driveway.
Why Asphalt Pavement Fails
The number one reason why asphalt driveways start to fail is the penetration
of water into the asphalt base. This happens when the driveway pavement
surface oxidizes, causing the asphalt to dry and become brittle. Erosion of
the top layer of fine particles follows, revealing larger stones and small
If left untreated, the driveway cracks will grow over time, eventually
allowing water to penetrate to the base of the pavement. Water entering this
base material settles and leads to further driveway cracking and an
"alligator appearance." Once pavement reaches this stage, removal and
replacement is your only option.
Sealcoating seals the asphalt pavement, which prevents oxidation and top
layer erosion. Driveway sealers replace the fine particles that have been
lost on older asphalt driveways. The process also seals small fissures
before they turn into large driveway cracks, and prevents water from seeping
to the base material.
In addition, driveway sealers protect asphalt from the harmful effects of
the sun and chemical spills such as oil and gasoline. The attractive black
surface provided by driveway sealcoating is easily cleaned, and ideal for
painting parking lot lines and other markers. Finally, sealcoating costs
pennies a square foot compared to the dollars needed to repair or replace
damaged asphalt driveways.