TL;DR
A wet film gauge is the small notched comb a painter presses into freshly applied coating to read its thickness in mils before it dries, using the deepest wetted tooth as the measurement. Since dry film thickness equals wet film times the coating's volume solids, the tool lets an applicator confirm during application that the final build will meet the product's specified range, rather than discovering a thin coat after cure.
What it means
A wet film gauge is the small notched comb a painter presses into freshly applied coating to read its thickness in mils before it dries, using the deepest wetted tooth as the measurement. Since dry film thickness equals wet film times the coating's volume solids, the tool lets an applicator confirm during application that the final build will meet the product's specified range, rather than discovering a thin coat after cure. It is routine quality practice on elastomeric coatings, epoxy floors, and industrial paint, where warranty coverage is written around achieving stated dry mils.
Where it sits in the glossary
Wet film gauge is part of the Trade jargon group inside the ProFix Directory glossary. Browse every term in this category from the glossary index.
Why Ohio homeowners should know it
This is a term Ohio homeowners encounter when reading contractor quotes, hiring paperwork, or inspection reports. Understanding it well enough to ask one good follow-up question is usually all the protection a homeowner needs.
ProFix Directory keeps definitions short on the index page and saves the longer context — Ohio-specific rules, where the term comes from, and which ProFix tools touch it — for these per-term pages so the term is easy to cite and easy to share.
ProFix tools that touch this term
See also
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