SHELL Window Deicer IPA Based. It quickly and efficiently dissolves ice and removes dirt from glasses, seals and locks of cars. It does not cause discoloring. It does not damage chrome, paint and rubber (windscreen wipers, sealing parts, etc.). The of the de-icer enables to avoid scratches on glasses and disruption of seals which can appear during mechanical removal of ice, e.g., with a scraper. Application: spray on frozen surfaces and leave for some time. Do not remove with a scraper – ice dissolves itself.