Thanks for the reply, I purchased the 3M (39045) one and it says It comes with a protectant that helps against uv protection, is this as good as the uv protector that maguiars has?
Obiously I don't want to do it again in a few months...
Maguires didn't have a sealant but was easy to do as you had a drill attachment to buff with
http://www.vanstyle.co.uk/van/meguiars-headlamp-plastic-restoration-p-4973.html?utm_source=google&utm_medium=googleshopping&utm_campaign=googlebase&gclid=CMnxm9fqwcACFYXJtAodz24Acw