What is Sanding?

Sanding is the process of abrading a surface with sandpaper or a sanding block to smooth imperfections, remove old paint, scuff glossy surfaces for adhesion, or level dried joint compound and caulk. Professional painters sand between coats on trim and cabinetry to achieve a glass-smooth finish. Proper sanding is one of the most important preparation steps — a well-sanded surface holds paint longer and looks significantly better than one that was skipped.