The selection of abrasive paper for smoothing wallboard compound is crucial for achieving a professional finish. The numerical value assigned to this paper indicates the density of abrasive particles per square inch, directly impacting the aggressiveness of the sanding process. A lower number denotes coarser particles suitable for removing significant imperfections, while a higher number represents finer particles designed for creating a smooth, paint-ready surface.
Employing the correct abrasive grade avoids common pitfalls such as excessive material removal, which can lead to uneven surfaces and require further patching. Conversely, using too fine a grade may prove ineffective at leveling imperfections, prolonging the sanding process unnecessarily. Utilizing appropriate abrasives saves time, reduces material waste, and ultimately contributes to a more aesthetically pleasing and durable final result. Historically, coarser abrasives were favored for initial leveling, followed by progressively finer grades to refine the surface.
