To remove those last bits of finish, palm sand with medium sandpaper (150 grit) until you see the bare wood. Then switch to fine sandpaper (200+ grit) until the entire piece is uniform. Wipe down the whole surface with a tack cloth to remove any dust from sanding.
Do NOT start sanding with very fine sandpaper on unfinished wood. Prepare the surface by using medium paper first, and then proceed to finer grades. On most raw woods, start sanding in the direction of the grain using a #120-150 grit paper before staining and work up to #220 grit paper.
Review the basics of effective wood preparation, finishing & care.. Choosing Applicator; Surface Preparation & Sanding; Choosing Stain Color; One-Step vs.
Where to Work; Top 5 Tips; Choosing a Repair Product; Sanding Tips; Use a Pre-
Learn about preparing wood for staining and how to stain unfinished wood.
Finishing Wood Trim With Stain and Varnish. Step 1: Project overview. Sand. Step 2: Begin by sanding. Photo 1: Sand with the grain. Step 3: Clean the room. Step 4: Brush on the stain and wipe it off fast. Step 5: Brush on a sanding sealer. Step 6: Sand the sealer before varnishing. Step 7: Finish up with oil-based wood.