Gazuki said..
If it is they are small just use Solarrez, the stuff is awsome. 5mins, a bit of sand paper and you would never know.
Ive snapped 3inchs of the nose and built it back up with solarrez,.love it.
Just make sure you get the right one, as it come for PU and Poxy.
Or if it is small do it properly. Solarez really is only a temp repair
Buy some West 105, bit of 4oz glass and some Q-cell. $60 all up and will do a lifetime of small repairs.
www.boardlady.com
Or the 300 threads in windsurf forum about how to fix composite sandwich boards.