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Defrosting Serious Ice? - Page 2

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Posted by Jean B. on January 16, 2006, 2:45 pm
Bill wrote:

:-(  So if a cat walks around on my car after it is sprayed,
that would be very bad for it?  Is the same true of prolylene

Thanks for the reminder.  The plot, er, solution thickens....

Jean B.

Posted by Michael Pardee on January 17, 2006, 1:33 am

Propylene glycol is considerably less toxic - it is used in Sierra (?)
reduced toxicity antifreeze and as a flavoring in cream soda... yum!

It would be a good idea to keep cats from even casual ethylene glycol
exposure, since they groom themselves. Small amounts of ethylene glycol do
no harm, but in creatures as sensitive as cats I hesitate to take chances.


Posted by Jean B. on January 16, 2006, 2:43 pm
 Michael Pardee wrote:

Alcohol and propylene glycol.  Does pure alcohol work somehow
even though it just evaporates?

Another reason I didn't spray the night before last is because
the windshield was already wet.  Does that matter (with the
mix)?  And what would this have done in the case of thick ice
(as vs frost)?  I am still wondering how I will get the ice
off my windshield wipers!!!!!

Jean B.

Posted by Michael Pardee on January 17, 2006, 1:36 am
Yes - it works in the same way salt does, gradually mixing itself with the
water in the ice to raise the freezing point. It takes a few minutes and
sometimes some reapplication but it works pretty well.


Posted by richard schumacher on January 16, 2006, 2:06 pm

Why are shutting the car off?  The Prius monitors its own battery
charging.  Just turn the car on ("READY"), as if you were about to drive
away, and leave it in Park; then you can sit there all day with the
defroster running if you want, until you run out of gas.

Once one could buy flexible plastic sheets with magnetic strips made to
cover just the windshield and prevent ice buildup.  I've no idea where
to find these now.

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