Originally Posted by
sports racer
Getting slightly off subject but why are you using a plastic scraper? I fill the watering can with hot water from the tap and pour it over my windows when they are iced up. To make sure the windscreen doesn't ice up again straight away I turn the wipers on for a few strokes to clear the water off.
I've been doing this for 40 years, on a great range of cars and as long as the windscreen isn't already cracked it doesn't do any damage. Just pour the water on so it takes a few seconds to do the windscreen, not throw it all on at once.
Canberra may be cold but you should see the ice we get out at Braidwood most mornings.
Cheers
Paul
You have been doing it wrong for 40 years then It has been scientifically proven that putting warm water on ice freezes faster than cold water
as per here
What’s Up With That: The Mysterious Effect That Makes Hot Water Freeze Faster Than Cold | WIRED
Have seen it myself with frozen locks Pour hot water on and they freeze up worse Pour cold water on they unfreeze Had my car parked out in a very wet and snowy winter Rained and froze at night couldnt get lock to turn in morning Poured hot water on it Made it worse tried cold and slowly it came right. I would never put anything hotter than very luke warm water on a windscreen and we always used cold.
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