> Date: Tue, 14 Sep 1993 17:06:15 -0400 (EDT)
> From: MYJAK@TITAN.KSC.NASA.GOV
> To: cobra@snakebyte.cdc.hp.com
> Cc: classic_mustangs@mustang.fc.hp.com
> Subject: Re: Metalprep on the cheap?
>
>
> >RUSTKILLER
> >
> > Phosphoric ACid 25% (I use 95% food grade, used by dairy companies).
> > Alcohol 25% (I use methylated Spirits)
> > Water 50%
> > Washing up Liquid a few drops. (whetting agent)
>
> I sure would like to find a source for phosphoric acid... but what strength?
> 37% - 1 Moler?
I don't know the strength. Perhaps food grade only comes in one
strength. Nor do I know of a source. Dairy industry supplier?
I was hoping this would be "common knowledge" to someone on this list.
Perhaps Mr Nothway could answer the strength question, though I
doubt his New Zealand supplier would be convenient or cheap for US
customers.
Any current or former dairymen/maids out there? Surely there's a
chemist or two?
Roland
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