sheltie
freely admits to licking rocks
Member since January 2012
Posts: 982
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Post by sheltie on Apr 15, 2013 8:24:16 GMT -5
I just got a new wet/dry polisher (handheld) and I'm having a little problem I could use advice on. On at least 1/2 of the slabs I've polished, there is a "smudge" left on the surface. I haven't been able to see it until at least the 800 grit disc is used. It's sometimes hard to see unless you hold the slab so that the shine is at an angle and then the smudge is obvious. I do the work outside, so I can't see the damage until I bring it inside after I "finish" it. Additionally, occasionally, on the outside border of the slab it sometimes looks a little less polished than the rest of it.
Any ideas?
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blackout5783
starting to spend too much on rocks
Member since November 2011
Posts: 248
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Post by blackout5783 on Apr 15, 2013 8:32:24 GMT -5
Unfortunately I can't help you, but I have noticed the same issue on the resin wheels I just bought. It doesn't happen every time, but enough to be aggravating. At first I thought I might not be using enough water, but it didn't seem to matter when I used more.
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Post by johnjsgems on Apr 15, 2013 9:02:51 GMT -5
If you bevel the edges slightly you will be able to sand out the edges better. Best to stop and dry the rock after the first few pads and make sure all scratches and flaws are out. By 400 all you will accomplish is making flaws easier to see. Smudges could be a transfer from the pads if they use a soft plastic resin or a place where you didn't sand enough.
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