Surface PreparationQuestion 17 of 100
What is the main reason to remove dust after sanding and before painting?
a.Dust improves paint flow
b.Dust left on the surface prevents proper adhesion and creates a gritty finish
c.Dust changes the sheen of the paint can
d.It is only an aesthetic preference with no effect on adhesion
Explanation
Sanding dust acts as a contaminant that keeps paint from bonding and leaves a rough, gritty film. Wiping with a tack cloth, vacuuming, or damp-wiping removes the dust for a clean bond and smooth finish. This step is part of preparing a clean, sound surface.
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