Can aluminium be heat treated twice?

Posted on Fri 22nd, March 2019

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• #126

deleted in reply to @M_V

From the blasting media that is embedded in the current paint it looks pretty course, being done in house by the frame builder though...

I'm just wondering as I asked Google and saw a few posts bemoaning mysterious holes appearing in 853 frames after repainting . Pish. Pish. Pish.
• #127

yetidamo in reply to @deleted

This isn't based on my own experience or any particular level of expert knowledge, but somewhere lodged in the deep recesses of my memory I think I read the same thing, that excessive shot blasting of heavily butted thin walled steel tubes resulted in pinholes. Can't remember where I read it but I'm sure I read some advice that shot blasting high end steel such as 853 more than once wasn't ideal.

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