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Why is Measurement Important?
Dry Film Thickness (DFT) is arguably the single most important
measurement made during the application and inspection of
protective coatings. Coatings are designed to perform their
intended function when applied within a tight DFT range as
specified by the manufacturer. Correct thickness ensures optimum
product performance. Even the most basic specification will
require DFT to be measured.
Many physical and appearance properties of the finished coating
are directly affected by the film thickness including the color, gloss,
surface profile, adhesion, flexibility, impact resistance, and
hardness of the coating. The fit of pieces assembled after coating
can be affected when film thickness isn’t within tolerance.
Regular film thickness measurement helps control material costs,
manage application efficiency, maintain finish quality and ensure
compliance with contract specifications. Paint manufacturers
recommend target ranges to achieve optimum performance
characteristics and clients expect these parameters to be met.
Precisely measuring finish thickness has other benefits, too.
Whether to meet International Organization for Standardization
(ISO), quality, or customer requirements for process control,
companies need to verify coating quality to avoid wasting money
reworking product.
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