if it aint too bad, best thing to do is gently wet flat it with 1500grit wet/dry paper (flat of you hand on larger areas, finger tips on small edges) but gently tickle it, then use some rubbing compound 'farecla g3' used by hand. tube costs about 8 quid but is better than tcut. you can use it on anything plus the more you water it down the littler cut it gets (tcut hates water)
hope this helps???