Ethanol will most definitely attack polystyrene and its cousins. If you
have not noticed it, it is because you have not been handling true
polystyrene. It does not attack most other plastics. My paper towel
dispensers in the shop are polystyrene, and if my fingers are wet with
ethanol, they will stick to the darn things and leave fingerprint marks.
----- Original Message -----
From: "Stefan Trethan" <stefan_trethan@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Monday, November 27, 2006 7:54 PM
Subject: Re: [Homebrew_PCBs] Isopropyl Alcohol 90%
> On Tue, 28 Nov 2006 01:32:54 +0100, AnaLog Services, Inc.
> <wireline@...> wrote:
>
>> One caution: ethanol will attack some of the nastier plastics like
>> styrene; it does not bother typical PCB material at all.
>
>
> I've yet to observe ethanol attack styrene, but maybe the additives are
> different in some places for denatured. I use mine on all plastics with no
> hesitation.
>
> I agree with you that IPA seems to have less cleaning action, and it
> stinks like a doctors office. Denatured ethanol OTOH tastes _really_ bad,
> no i don't try to drink it but if you blow out a tubular part a tiny
> amount of residue tastes very bad on your lips. Same with antifreeze, and
> intentional in both cases.
>
> ST
>
>
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