Powermatic 3520A instruction manual Sanding and Finishing

SANDING AND FINISHING:

1.Remove the toolrest and adjust lathe speed to approximately 500 RPM. High speed can build friction while sanding and cause heat check in some woods.

2.Begin with fine sandpaper (120 grit) and progress through each grit, using only light pressure. Coarser sandpaper tends to leave deep scratches that are hard to eliminate. Use power-sanding techniques to avoid concentric sanding marks around your finished piece. Avoid rounding over the rim and foot with sandpaper; try to keep details crisp. Finish sanding with 220 grit.

3.Remove sanding dust with tack rags or compressed air and, with lathe turned off, apply first coat of finish. Let stand for several minutes, wipe off excess. Allow to dry before sanding again with 320 or 400 grit sandpaper.

4.Turn lathe back on and continue the separation cut almost all the way through the base. Stop at about 3" and use a small fine tooth saw to separate the bowl from the waste.

5.Apply second finish coat and allow to dry before buffing.

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