Surface PreparationPregunta 7 de 100
Before painting new bare wood trim, why is sanding in the direction of the grain important?
a.It smooths raised fibers without leaving cross-grain scratches that show through the finish
b.It removes the need for any primer
c.It increases the moisture content of the wood
d.It darkens the natural color of the wood
Explicación
Sanding with the grain levels raised fibers and creates a smooth surface without visible cross-grain scratch marks that telegraph through paint. Sanding across the grain leaves scratches that become obvious under a gloss finish. A dust-free, smooth surface improves both appearance and adhesion.
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