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Thread: Removed Dingotone finish - like result - any advice on leaving without new finish.

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  1. #1
    Overlord of Music McCreed's Avatar
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    Quote Originally Posted by Rabbit View Post
    Well, I *am* chemist, and in a laboratory metho in Australia is called denatured alcohol.The stuff you get from Bunnings will be 95% ethanol, some methanol, some water and some other trace amounts of crap to make it even more undrinkable than the methanol makes it... although I suspect for the purposes of using it to solubilise shellac it probably doesn't makes much difference. Unless you get desiccated denatured or absolute ethanol (that's 100% and *very* expensive) there will always be some water in the mix. lab or industrial grade (like the pic> will not have the extra impurities they add to metho, just etrhanol and methanol. by 100% methylated spirits that does *not* mean 100% ethanol, or it would not *be* methylated spirits :P. But yeh... the industrial stuff is probably better than the domestic stuff .
    From what is obviously my tenuous understanding of this, it is the percentage of water content that makes the difference.
    This is why shellac flake that has been improperly stored and subjected to moisture, will have difficulty fully dissolving.
    Making the world a better place; one guitar at a time...

  2. #2
    Quote Originally Posted by McCreed View Post
    From what is obviously my tenuous understanding of this, it is the percentage of water content that makes the difference.
    This is why shellac flake that has been improperly stored and subjected to moisture, will have difficulty fully dissolving.
    Ah, in that case yeh, the industrial stuff would have less water. The alternative is 100% Isopropanol. Fairly easy to get, it's used for cleaning, amongst other things. Even the industrial metho will have some water... but it's kinda bound to the ethanol.. unless you go through a costly process which would make it un-economical, the ethanol in the used in the industrial stuff will still have some water (rather than 100% ethanol they probably used 96%, so the mix is 95% of 96%)

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