Friday 24 May 2013 23:06 UTC
The place for technical discussions about GA and flying.
Technical discussions about GA only, please.
When I was renting there was always a supply of aviation de-icer available for those early start cold mornings.
I'm told they are extremely expensive to buy, so the question is can car de-icer be used on aircraft ?
Sometimes you're the pigeon and sometimes you're the statue...........
Yay, the yearly subject!
The short answer is "yes, but keep it off the windows". It also could get really expensive!
As I understood it, aircraft de-icer is 45% propylene glycol, 5% isopropyl alcohol and 50% water. Car de-icer can be several things, with windscreen de-icer generally in the past being isopropyl alcohol.
Propylene glycol is used as a "bunny friendly" car antifreeze, so you may be able to obtain it that way.
A quick google gives this:
£13.90 for 5 litres, which if you mix it 50/50 with water, will cost that for 10 litres of de-icing fluid.
Haven't looked at isopropyl alcohol to mix in, but you used to be able to buy it on e-bay. Expect it'll work without it though.
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