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Is cleanup with a sand(abrasive) spot blaster a good idea?

Posted by jobzombi 
Is cleanup with a sand(abrasive) spot blaster a good idea?
November 10, 2015 08:00AM
I checked online and here in the forums and other than just statements of possibly not being a good idea no real evidence was given against or for it. I know tumblers seem to be the norm, but running one for over 24 hours seems ludicrous to me. I was thinking of using a low CFM spot blaster, with either super fine sand or soda. Never used soda for "sanding" but then again who does, since a lot of higher end sand paper don't even use sand and then a file, is well not sand either. Any recommendations would be great to get me started.
Re: Is cleanup with a sand(abrasive) spot blaster a good idea?
November 12, 2015 05:00AM
Hi,

I'm affraid sand will be too aggresive for plastics.
And cause maybe some damage on corners or details.
It can make bumps, hills and valleys too,
Actualy, that's what tumbling does anyways.
I did not used soda by the past.
I know using micro glass balls instead of sand can be better.
But any sanding leaves the surface plushy.

Maybe the hand is more selective with jewelry files and/or Xacto knife.

To me, plastic dressings and coating (resins, fillers...)
can do better than sanding, preserving dimensions and details.

++JM

Edited 2 time(s). Last edit at 11/12/2015 05:01AM by J-Max.
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