Q:
What is Hawk-Seal-E? A:
Hawk-Seal-E is a cross-linked blend of
naphthenic emulsion and co-polymers.
This unique combination gives Hawk-Seal-E
its ability to penetrate,
waterproof and protect an asphalt
surface. This product combination is
also highly resistant to oxidation. The
copolymers add surface strength.
Q:
Is Hawk-Seal-E like a chip seal,
micro-surface, asphalt
emulsion or coal tar sealer? A:
Absolutely not. Hawk-Seal-E is in no way
related to these types of surface
treatments. Hawk-Seal-E is like no other
emulsion.
In
fact, Hawk-Seal-E should definitely be
applied to surfaces that have
received these types of treatments.
Hawk-Seal-E is designed to penetrate,
not merely sit on top of an asphalt
surface. Also, the above treatments
inhibit the natural escape of moisture
vapor (steam). Hawk-Seal-E allows steam
to escape while maintaining a
waterproof barrier.
Q:
How does Hawk-Seal-E work? A:
There is a very strong attraction between
the Hawk-Seal-E naphthenic
emulsion and any asphalt surface that has
lost its naphthenic acid fraction due
to damage from water and oxidation. The
asphalt surface rapidly absorbs the
Hawk-Seal-E naphthenic emulsion, thus
dragging in the copolymers and
filling the surface voids in the asphalt.
Once the surface voids are filled and
the asphalt binder treated, the surface
is waterproof and oxidation is reduced.
Q:
How much Hawk-Seal-E is used per square
yard of surface?
A:
Hawk-Seal-E is diluted with water at a
10:1 ratio. The standard application is
0.12 gallons of mix per square yard per
application. A minimum of three
applications is made for a total of 0.36
gallons of mix per square yard. If the
asphalt surface is extremely porous,
additional applications may be needed.
Q:
How long will it last?
A:
For well installed asphalt, early in its
oxidation cycle, a treatment can
conservatively extend the life by 50%. If
the working life of an asphalt surface
can be extended for several years, big
budget dollars can be saved. This frees
up more funds to be invested on surfaces
that are not worth saving and
need to be overlaid with new asphalt.
Q:
Do streets have to be closed during
application? A:
No. Traffic has been known to follow
directly behind the application
equipment. We strongly advise that signs
or personnel warn motorists to drive
no more than 7 MPH if the surface is wet.
Usually within 15-45 minutes
traffic can resume normal speed
Q:
How do you know when the asphalt surface
is properly sealed? A:
The surface will turn dark or black. The
asphalt will stop absorbing
Hawk-Seal-E. Puddles will remain on the
surface.
Q:
At what time in the life of asphalt will
you receive the maximum benefit? A:
The earlier in the oxidation cycle, the
better. Usually 4 to 6 months after lay
down. We recommend that a new overlay go
through one summer.
Q:
What about older surfaces? A:
If a surface is old and in still in good
condition, it will benefit significantly
from a Hawk-Seal-E treatment. It has been
applied to surfaces 15+ years old.
Q:
Can you use Hawk-Seal-E on concrete? A:
Yes. It will waterproof it, but will turn
the surface dark. Not recommended.
Q:
Do you have to re-stripe immediately
after applying Hawk-Seal-E? A:
You will usually be able to see the
existing stripes. Re-stripe when
economically feasible.
Q:
Why is Hawk-Seal-E the best option? A:
Water, water, water. The longer you keep
water out of asphalt, the longer it
will last. Also, oxidation from the sun
dries out asphalt, causing it to
deteriorate. Hawk-Seal-E keeps the water
out of asphalt and components in
Hawk-Seal-E protect it from oxidation.
Q:
Are all asphalt surfaces alike? A:
No asphalt surface is the same, even on
the same stretch of road. During the
lay down process, there are weak areas
that Hawk-Seal-E can locate. You will
discover that Hawk-Seal-E pinpoints areas
of low compaction. These areas
are subject to more rapid deterioration
because they contain more voids.
You will observe more Hawk-Seal-E
penetrating into these areas.
Q:
When is the best time of the year to
apply Hawk-Seal-E? A:
When overnight temperatures are above 65
degree F.
Q:
What does the surface look like
immediately after treatment?
A:
Most surfaces look and wear like a new
asphalt overlay.
Q:
Will the final, treated surface remain
black? A:
The surface will eventually turn gray
just like new asphalt, usually within
12-18 months. Long-term, a gray surface
is preferable because black
surfaces hold and intensify the effects
of heat. Gray is a much better
reflector of UV rays.
Q:
After the surface turns gray, is it still
waterproof and protected?
A:
Yes. The waterproofing remains long after
the initial beading action is gone.
Q:
During or after application, is the
surface slick? A:
No. During application the surface should
be treated as you would
a rain-slick surface. After penetration,
the traction is excellent.
Q:
Does Hawk-Seal-E track?
A:
Once dry, 15-45 minutes after
application, it does not track.
Q:
How much time does it take to make the
three applications?
A:
Under dry, sunny conditions all three
applications can be made the same day.
Conservatively, allow 1-½ hours between
applications for complete
penetration and drying. Some asphalt
surfaces require less time.
Q:
If only one or two applications are made
in one day, is this a problem? A:
No. You can make the applications a day,
week or month apart.
Q:
What happens if it rains during
treatment?
A:
If the application has already
penetrated, no problem. If the treatment
was still
wet (i.e. not penetrated), it will be
washed off and will need to be
re-applied.
We normally allow a surface to dry for at
least one day before resuming work.
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