Consider the Substrate.
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Exterior Painting
New age acrylics are far superior
to anything ever seen in history. For adhesion and longevity,
these heavy coatings are thick and formidable, resilient and
flexible, and they are failing on some substrates. Several
reasons are given for the failing coatings.
On wood siding, with new
paint failures, some theorize that the original clapboards
were not properly back-primed. This may hold some validity;
however it still does not entirely explain the failure of
these great products. Some believe that new growth wood
installed from the late 1980’s forward, which is less dense
and fails prematurely, provides a substrate in flux that
inhibits good paint adhesion. This is a certainty, for the
fast growing, hybrids that have been used to reforest have
produced harvestable trees in decades that used to take a
century to mature. |
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New Growth Wood
vs.
Old Growth Wood |
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