PB 182 (1 of 29)
I just got some AG bumper care from demon tweeks via ebay
http://rover.ebay.com/rover/0/e1100...200590100068&ssPageName=ADME:B:EOIBSA:GB:1123
for the price it's very very good, it's a gel rather than a spray so has longevity and it beads water well, two weeks on it hasn't faded. you can get better, but it costs.
as the trim has a slightly rough surface i found it better if i dabbed it on with a paintbrush, let it dry for a while then just wipe. you don't need to use much at all.
Sounds interesting, I have been looking around but as you say some of the supposedly good products are really pricey, might have to give this a try, cheers.