But what sandpaper should do the finishing job???? Or should we polish everything that is in though with water??
- Polished, water cannot from a layer on the surface. Polished surface have theoretical the best waterdisplacement, thinnest layer on fins. Why don't we polish our fins??? simple answer to that: with a polished fin the surface will release from the water when air is involved, this means you will instantly loose 2/3 of the lift that the fin generates. SPIN-OUT is often followed.
- 600 grit sandpaper, that is what I use for my fins to finish, but I don't know if this is the best. It is easy to get and quite fine.
- My carbon art boards are all polished on the bottom, it is not dangerous when the bottom of the board releases from the water. And polished surfaces don't get dirty!
- My fanatic Falcon is finished with 400 grit sandpaper or something like that