bought some of this stuff a few days ago
http://www.ebay.co.uk/itm/T-cut-orig...7#ht_500wt_922
but don't buy it from here is only £3.50 in asda
heres the results, i didnt take before pics i didnt think to sorry
as they had quite a lot of surface corrosion i used some 1000 grit sandpaper to get the worst off and then did the first treatment then buffed and repeated but did the alternator bracket a third time