I have already done all the work I can do on the belt sander. I just wanted to knock a little off of the edges and corners to make it look right all around, but all I kept getting was rough scuff marks with fine sandpaper and nothing seemed to be coming off. I hate to take it off of the gun and stick it in the freezer. But I was planning on covering it with a leather pad so maybe when I get ready to do that, I'll take it off of the gun, try freezing it and go from there. Thanks for the help.