Just a quick video of Gtechniqs G1 nano window coat sytem, its been on my van for around 8 months and it gets used a lot over here with our weather, 1 application can last up 2 years. Unlike many silicone based products this uses a covalent bond, the heavier the rain and the faster you go the better it works. The subaru/prodive wrc team used it on there cars all over the world.
The best way to apply is with make up pads leave for 15 mins then use the residue remover.


http://www.youtube.com/watch?v=IvrHflrtAzs


YouTube - gtechniq g1 widow coat