Sealcoating
We use STAR-SEAL ASPHALT SEALANT,
which meets or exceeds: Federal Specification RP-355E
•SEALCOAT YOUR DRIVEWAY/PARKING
LOT.
Sealcoating is the method of protecting your asphalt pavement by applying
a coating to the pavement surface. Oftentimes homeowners try to do this
themselves, but hiring a pavement maintenance professional will give
you better results.
The professional contractor understands pavement, knows how the sealer
works, and is trained to help stop small problems before they become
big, expensive problems. He knows the proper techniques to prepare the
pavement and apply sealer, he owns and knows how to use the necessary
tools, and he also uses a top-quality professional sealing product.
He can also include aggregate in his sealcoat, which will make the sealer
last longer and assure an abrasive surface for car and foot traffic.
Without aggregate, a sealed asphalt surface can be slick.
•HOW SEALCOAT PROTECTS YOUR PAVEMENT.
Preceded by effective crack repair, sealcoating applied every two or
three years can significantly extend the life of your driveway/parking
lot for minimal cost.
•PREVENTS OXIDATION: Asphalt pavement begins to
deteriorate almost as soon as it's placed. As the pavement is
exposed to oxygen,
the asphalt binder (tar) hardens. This hardening results in a
brittle surface that will eventually crack. The cracks enable
oxygen and rainwater
to penetrate the pavement, often into the subbase, weakening
it and reducing pavement strength. Sealcoating protects the surface
and fills
surface voids, reducing the pavement's exposure to oxygen and
water, and extending pavement life.
•RESISTS ULTRAVIOLET RAYS: These rays from the sun also
cause the pavement to deteriorate. They break down the links between
carbon bonds
in the asphalt, causing the pavement to crumble. Regularly applied
sealcoats prevent ulraviolet rays from penetrating the pavement.
•RESISTS OIL AND GAS SPILLS: This is especially important
on driveways/parking lots where cars are often parked or worked
on. Gasoline or oil will soften
asphalt concrete. Coal tar sealers aren't soluble in gas or oil
so they prevent damage caused by leaks or spills. Asphalt sealers,
which normally
would be soluble in gas or water, usually include additives that
enable them to resist such leaks. By filling surface voids, sealcoating
also
reduces the depth to which oil or gas can penetrate the pavement.
•SEALCOAT ENHANCES PAVEMENT APPEARANCE AND EASES MAINTENANCE.
Sealcoating brings back the dark black color of the original pavement,
making it look and wear like new. Sealcoated pavements also are easier
to clean and maintain. Because sealcoats fill the surface voids, they
make the surface much smoother. A smoother surface is easier to sweep,
shovel and wash.
•SEALCOAT NEW ASPHALT WITHIN THE FIRST YEAR OF CONSTRUCTION
But wait at least 90 days. Asphalt concrete needs between 60 to
90 days to fully cure, and contractors should wait that long before
sealcoating.
If sealer is applied before the pavement is cured, the oils in
the asphalt will work their way to the surface and the sealer
won't adhere properly.
Two coats of sealer are recommended-the added cost is minimal compared
to the extra protection.
•SEALCOAT YOUR DRIVEWAY/PARKING LOT EVERY 2 OR 3 YEARS.
Sealcoating is a protective film that will wear away, probably
in some high-wear areas such as wheel paths, over time. A good
rule
of thumb
is to have the contractor sealcoat your driveway/parking lot every
two or three years. This provides a consistently high level of
protection for the pavement, ensuring that it will last longer.
Sealcoating
is like "WATER-PROOFING" your
pavement.
|
•SELECTING
YOUR SEALER.
Rely on your pavement maintenance contractors to make this decision.
They know what type of sealer is best for your pavement condition and
region of the country. Most likely they will recommend one of two types
of sealer.
•ASPHALT EMULSION.
The main ingredient in this sealer is a by-product of the oil-refining
process. It is naturally compatible with the asphalt concrete, but
by nature it is less resistant to oil and gasoline spills. Manufacturers
of asphalt sealers modify the asphalt emulsion with special additives
that make it more resistant to gasoline and oil spills.
•REFINED COAL TAR EMULSION.
Coal tar is a by-product of the steel manufacturing process. After it
has been refined, it is used as a sealer for both pavements and roofs.
Coal tar emulsion is naturally resistant to oil and gasoline spills. THIS
PRODUCT IS THE MOST RECOMMENDED FOR THIS REGION.
Many sealcoating materials sold in hardware stores and other do-it-yourself
outlets are not as high of a quality as that used by professional pavement
maintenance contractors. Contractors are trained professionals whose
livelihood depends on the quality of their work. Therefore, they are
closely tied to reputable manufacturers who make a consistently high-quality
sealer designed for professional use.
Sealers used by professional contractors often:
*Are thicker
*Have a higher solids content (which is important when filling in surface
voids.)
*Contains additives that will speed drying, reduce tracking, improve
adhesion to the pavement surface, gives sealer elasticity, suspends sand
for uniform distribution on pavement, and generally extends the wearability
and life of the sealcoat.
*Will have the proper aggregate (sand) content to provide an abrasive
surface for slip resistance and surface glare.
•RELY ON YOUR PAVEMENT MAINTENANCE
PROFESSIONAL.
Your driveway/parking lot is a significant investment in your property. Proper
maintenance by a skilled professional can help make your investment last more
than twice as long as unmaintained pavement, thereby extending the life of the
pavement and saving your money over the long run. Your pavement maintenance contractor
is trained in detection and repairing pavement defects ranging from base failure
to crack repair and sealcoating. He has the right tools, the knowledge, and the
know-how to do the job right. Rely on him to help you to maintain a long-lasting,
quality pavement. |