Which process is used to roughen a surface to improve adhesion?

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Multiple Choice

Which process is used to roughen a surface to improve adhesion?

Removing gloss and giving the surface a dull, key-like texture is how adhesion is improved. Scuffing or deglossing uses abrasion to dull the existing coating and wipe away waxes, oils, and contaminants, creating micro-roughness that the primer or paint can grab onto. This mechanical roughness is essential for a strong bond between layers. Featheredge is about blending edges around a repair, not roughening the entire area for adhesion. Buffing, polishing, or compounding smooths the surface and can remove the little texture needed for good adhesion, so it’s not used to improve bonding. Runs or sags are finish defects from application, not a preparation step. So the process that best roughens the surface to improve adhesion is scuffing / deglossing.

Removing gloss and giving the surface a dull, key-like texture is how adhesion is improved. Scuffing or deglossing uses abrasion to dull the existing coating and wipe away waxes, oils, and contaminants, creating micro-roughness that the primer or paint can grab onto. This mechanical roughness is essential for a strong bond between layers.

Featheredge is about blending edges around a repair, not roughening the entire area for adhesion. Buffing, polishing, or compounding smooths the surface and can remove the little texture needed for good adhesion, so it’s not used to improve bonding. Runs or sags are finish defects from application, not a preparation step.

So the process that best roughens the surface to improve adhesion is scuffing / deglossing.

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