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Old 07-10-2020, 09:01 AM   #21
51 MERC-CT
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Default Re: Wet sand blasting??

Sounds like you were doing some 'vapor blasting' in Southington.
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Old 07-10-2020, 01:55 PM   #22
frnkeore
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Default Re: Wet sand blasting??

Quote:
Originally Posted by 51 MERC-CT View Post
Glass bead is not aggressive enough (wrong media) for the removal of epoxy paint.
That, along with excessive air pressure is a recipe for disaster.
That may be but, it was the only thing available.

The aluminum I was working with was old traffic signs. They were free but, I didn't want the printed surface to show. It was in about '69 so, I assumed epoxy, rather than anything else available, in that day. But, my point is, that anything that peens a surface, will expand it, in relation to the opposing side and to be careful with thin sections of sheet metal.
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Old 07-10-2020, 07:51 PM   #23
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Default Re: Wet sand blasting??

Industrial painting companies used wet blasting when the AQMD squalked about dust.
After a while they went back to the dry sand.
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