Windscreen Repair Kit

Windshield crack repair (17 inch)

My windshield got a big almost 35cm crack like the one on the video and at Carglass they told me it can not be fixed and needed glass replacement (700 euros). So I will try my luck with DIY repair kit I bought from the internet for 65 euros for big cracks. The seller provided me with a helpfull DVD of many instructional videos and I posted the one I am going to use.