Ammonia also reacts with vinyl plasticisers found in dashboards, seat
panels, rear soft top wind screens, and the colorful coatings sometimes
found on electrical wiring. Eventually the insulation will be rendered
hard and brittle. Ever use any of the various flavors of window cleaner
containing ammonia on your car's windows? Ever notice a white powdery
film on the inside of your windshield a few days later? That's the
residue from the reaction between ammonia and vinyl plasticiser.
Jim
Bullwinkle wrote:
> FWIW:
>
> Ammonia is an excellent cleaner of copper. However, I've read
> that it can cause "hydrogen embrittlement" (Spell checker doesn't
> know that word, and I can't find it in the dictionary) and should
> not be used to clean cartridge cases. However clock makers use
> it to clean large brass clocks.
>
> Blake
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