Can aluminium be heat treated twice?

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deleted

To hijack this thread with my own boutique bicycle woes... How many times can 853 be sand blasted? 😭

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M_V in reply to @deleted

Guess it’ll depend on the actual type of blasting, the media used and stuff.

The powder coated I use must use a very abrasive blasting media as it leaves a pretty pitted finish on metal so I probably wouldn’t trust them with anything nice like 853.

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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.

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