Followed the instructions religiously. Even buying the recommended cleaning products and cloths to provide the perfect surface.
Not that difficult to apply, needs a bit of patience to do it rigjt All looked good until the next day when it rained. The beading is fantastic, it really does work but then I had to use the windscreen wipers - what a disaster, I was left with massive verticle lines where the wipers had wiped the screen.
They were so bad I had to pull over in the rain and use a cloth to remove them. Instead of improving viability this was actually a massive hindarance, bordering on dangerous, perhaps it was my wipers (it is a brand new car) but I can't recommended
In conclusion it does work, the beading is brilliant but if you have to use your wipers then I would avoid using!