I am a novice at turning, having been at it for a couple of months. I have been steadily ascending the learning curve and have arrived at a place where I can usually produce bowls with pleasing shapes, smooth curves, and thin, uniform walls. Sanding, however, has me flummoxed.
I start with 80# to 100# grit, both by hand and with 2" discs under power, and continue up through to 320#. Somewhere along the way a condition often occurs. Rough spots appear which get worse with continued sanding. I back down a grit and attempt to clear it up by sanding with the lathe off, sometimes without success. The surface turns white colored and feels "fuzzy". It looks like galling on metal. I'm currently unable to post a pic of this condition.
I turn on a Delta-Homecraft which has a lowest speed of 900 RPM and no reverse capability.
Thoughts or advice, anyone?