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.
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3 entries for “Adhesion”
Painting over it does not restore adhesion.
See Choosing the Right Primer for the distinction between stain blocking and bonding.
Manufacturer directionBenjamin Moore describes blocking as painted surfaces sticking when pressed together before the finish has dried and cured sufficiently.
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.
For primer selection and the distinction between sealing damage, blocking stains, and gaining adhesion, see Choosing the Right Primer.