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Posted by Franz© [4.156.234.34] on Saturday, November 21, 2009 at 02:46:03 :
In Reply to: sand blasting posted by Galen [67.142.168.141] on Friday, November 20, 2009 at 21:46:08 :
Honestly, without seeing the machine, I'd recommend using high pressure water to blow all the scale off, then phosphoric acid treatment rather than sandblasting.
Doing the acid correctly will save most priming, and eliminate spalling a few years down the line that will happen with MEDISA blasting.
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