--- In Homebrew_PCBs@yahoogroups.com, "derekhawkins" <eldata@...> wrote:
didn't pay taxes to the government for this booze, so we're going to
put something in it the that'll blind you or kill you." How very
nice. I remember reading elsewhere that there's a move to agents that
won't kill you, they just taste _extremely_ bad, like denatonium
benzoate.
Besides being hazardous to your health, MEK is used to clean resin
epoxies off tools used with them, so I wonder what it does to the
already cured epoxy of a PCB?
>Yes, some of those ingredients surprised me. Basically it's, "You
> > Other "typical additives are methanol, isopropanol, methyl ethyl
> > ketone, methyl isobutyl ketone, denatonium benzoate, and even
> > aviation gasoline."
>
> BTW, methyl ethyl ketone is MEK. Denatured alcohol can have "nasties"
> albeit in small quantities. Ethanol evaporates too fast to be better
> than MS for flux removal IMO. While fast evaporation is necessary for
> cleaning surfaces like glass to prevent smearing (methanol is the best
> here), a more balanced solvent is better suited for heavy deposit
> buildup. Furthermore, MS plus compressed air will evaporate almost as
> fast as acetone, in other words you have control over the rate of
> evaporation.
didn't pay taxes to the government for this booze, so we're going to
put something in it the that'll blind you or kill you." How very
nice. I remember reading elsewhere that there's a move to agents that
won't kill you, they just taste _extremely_ bad, like denatonium
benzoate.
Besides being hazardous to your health, MEK is used to clean resin
epoxies off tools used with them, so I wonder what it does to the
already cured epoxy of a PCB?