EXPERT ADVICE
may be based on refined tar, asphalt or
any other resin. ‘The use of additives
in sealcoating coincides with the very
inception of sealcoatings in the 1960’s.
Additives based on specialty latex/
rubber polymers have been a part of
the FAA specification since the early
1970’s. Over the last few years, there
has been a concerted momentum by
materials suppliers to offer a class of
products and chemicals that are
designed specifically to boost the
performance of sealcoats. The use of
such products, which are called
‘additives,’ have enabled sealcoating
professionals to apply sealcoats even in
unfavorable ambient conditions and
still accomplish optimum performance.
Although it may appear that most
additives are supplied to make the
sealer dry faster, that is only a part of
the benefits provided by additives.”
Think about it, sealcoating and the
additives that enhance the asphalt
pavement coating have been around
since Nancy Sinatra recorded “These
Boots are made for Walkin’” and one
has to wonder if maybe there are lost
lyrics about walking all over asphalt.
Probably not, but worth a wishful
thought.
So, with a 50-some-year history, additives
have shown value beyond faster
cure time.
“Additives are used in sealcoating for
many different reasons; most common
is for faster cure time, but that’s not all
they do,” stated Adam Wellman with
Maintenance Inc., Wooster, Ohio.
“Most contractors these days think that
that’s the only benefit of using a additive,
but they also dramatically increase
the durability of all sealers by adding
flexibility, fuel and oil resistance, and
they increase bonding to the surface of
asphalt, as well as helping suspend sand
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