The best deicer have I used so far

The disc deicer of Caramba is a product in the middle price region, however, the performance is top.
The deicer can at -10 degrees felt thick ice (> 0.2mm) to resolve what is even possible relatively quickly.
My wife has actually managed to in the vergangegen cold days to one iron their entire car under waste a whole can and entschneien.
Just on past use, but it worked!

On the disc not lubricated, the de-icer does not stick like some cheap products and the view is absolutely clear.
Clear recommendation.
Subjectively also wiper gently.