EXPERT ADVICE
Sealcoating preserves pavement
and helps to keep the pavement flex-
ible by sealing in the asphalt oils.
“Sealcoating slows pavement dete-
rioration and improves the life cycle
costs of that pavement investment,”
Dubey said. “Clearly, it should be
the starting point of a complete
pavement maintenance program.”
Whether it’s a refined tar seal-
er, which was first introduced in
the 1950s, or a more current as-
phalt-based sealer or the environ-
mentally and user-friendly new resin
surface introduced in 2014, the ex-
perts appear to agree that a protec-
tive sealcoat layer can slow down the
degradation of the hot mix asphalt
pavement. And the emphasis is on
slowing down the deterioration since
nothing will prevent the inevitable.
Asphalt pavement offers poor re-
sistance to ultraviolet radiation and
sunlight, which results in oxidation
of the pavement, which causes a loss
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