GLOSSARY TERM
Dry Film Thickness (DFT)
The thickness of a paint film after it has dried, measured in mils or microns.
INFO
What it is
Dry film thickness, or DFT, is the thickness of a coating after it has dried and cured, measured in microns. It is the true measure of how much protective material remains on the surface.
Why it matters
Coating performance and guarantees are specified in terms of DFT. Achieving the correct dry thickness confirms the surface has the protection it needs, which is why it is a key quality check.
Where it is used on a project
Checked on protective and architectural coatings, particularly on steelwork and cladding where corrosion protection depends on reaching a specified film thickness.
How NECC approaches it
We apply coatings to achieve the specified dry film thickness and can verify it where required, giving confidence that the finish will perform and last as intended.
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FAQ's
What is dry film thickness?
DFT is the thickness of the coating once it has dried and cured, measured in microns. It confirms the right amount of material has been applied.
How is DFT measured?
With a dry film thickness gauge, which reads the cured coating depth on the surface, often used on metal and protective coatings.
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