I have a 10 footer that’s only about a year or two old. I got it used and it had been somewhat abused but it looked worth fixing up. There were some open dings where the foam had yellowed so I sealed them up so I could go surfing. the board is water tight now, but I’d like to go back after the yellowed areas and clean things up. The board is a lot fun in small surf and in great shape other the spots I refer to, which are along the rails so it seems worth the effort. I’m sure I’ll have to take some of the glassing away and do something to the foam but I don’t know any good tricks to whiten things up other than replacing the foam. Can anyone give me some ideas or short cuts about how I can make it look fresh again? Mahalo, Rich