Well, i have to say they lasted longer than regular Elixir's. With regular Polyweb they lasted at the most 2 days without rust, thats 6 hours a day...i have had these Alloy coated over 7days and they are still, shiny, bright and the tone is great just like i changed them!
So i would totally recommend these to anyone! Totally got 10/10 from me :D
Baci
EDIT: Its Nanoweb (sorry, not polyweb!) :p :o