Adhesion
How well a coating holds to the surface beneath it, whether that surface is bare material, a repair, or an existing coating.
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How well a coating holds to the surface beneath it, whether that surface is bare material, a repair, or an existing coating.
Problem
3 entries for “Adhesion”
A new finish must adhere to the actual prepared surface it will touch.
My cleaning check is a fresh-rag wipe: no visible contamination should transfer. Repeat cleaning where residue remains. A visually clean surface still needs the adhesion and compatibility checks for the chosen system.
Field practiceWhere I use water-based grain filler, I prefer to apply it after a compatible bonding primer, such as STIX, because I have experienced beading over sanded lacquer.
Manufacturer directionOld Masters advises against tack rags because they may leave adhesion-interfering residue.
Preserve color without skipping the receiving coat's adhesion requirements.
Follow the exact products' limits for adhesion, intercoat preparation, and film build. Test for lifting, wrinkling, or adhesion failure before committing to the whole job.
Only after investigating other likely causes should widespread, gradual release at the original coating-to-wood bond be attributed to age-related failure.