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
5 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.
The reviewed DTM Acrylic sheet lists a separate bonding-primer system for baked-on siding finishes. Its previously painted-surface guidance calls for an adhesion test after a one-week drying period.
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.
If inspection finds peeling, loss of adhesion, water damage, or another failing condition, address that problem before applying these corrective coats.
Filed under Problem: Peeling