Matt vs Polish(glossy)

[Wing 11]

What is faster matt or polish bottom?

what granulation of sandpaper have isonic,falcon and other slalom boards?

some research tell that matt/polish is not really proven..

Carbon Art :

"11. POLISHThe best way is to find someone with a small polishing machine and foam polishing pad. Take care not to work any one area for too long as the surface will heat causing the paint to distort.
Some people believe polished surfaces to be slower than wet sanded surfaces, whereas others believe the reverse. However it is clear that polished surfaces remain clean for longer, and a clean surface is a fast surface."

www.carbonartwindsurf.com/Performance/Maintenance

[Navegante]

You want a wet sanded surface that helps a film of water adhere to the general surface thus creating a low friction area where water glides against water. The film on the hull and the sea/lake water.
I used to use a wet 600 grit. Once the whole surface has been smoothly and evenly sanded you clean it with a plain sponge to get all the dust off and let it dry. You then throw water on it and a full wet film coat should cover it. That is your low friction surface.
However some performance experts argue that finer grit is needed because the coarser grit makes too much water stick to the surface, this is not ideal.
Some go as fine as 1500 wet grit which makes a mirror like surface.

[Wing 11]

You want a wet sanded surface that helps a film of water adhere to the general surface thus creating a low friction area where water glides against water. The film on the hull and the sea/lake water.
I used to use a wet 600 grit. Once the whole surface has been smoothly and evenly sanded you clean it with a plain sponge to get all the dust off and let it dry. You then throw water on it and a full wet film coat should cover it. That is your low friction surface.
However some performance experts argue that finer grit is needed because the coarser grit makes too much water stick to the surface, this is not ideal.
Some go as fine as 1500 wet grit which makes a mirror like surface.

How are you sanding,circular motion,8-motion,straight motion in direction with board centerline,cross motion?

What is grit size on production boards isonic etc?

[Navegante]

Palm finishing sander. As even as possible without spending too much time in any one particular spot. Last pass of the sanding paper by hand to even out areas that look visually irregular.
No idea what they use in production boards but you can be sure they will not spend much time or care in it. There’s a big cost in man hours if they did.

[Wing 11]

you can be sure they will not spend much time or care in it. There’s a big cost in man hours if they did.

To me, it is very strange that factoray make matt finish,becuse they lose money when sanding..on the other way there is lot of information that polish is faster,so in practice neither finish is proven 100%.

http://www.mothboat.com/building/wax-on-or-off

[Navegante]

To me, it is very strange that factoray make matt finish,becuse they lose money when sanding..on the other way there is lot of information that polish is faster,so in practice neither finish is proven 100%.

http://www.mothboat.com/building/wax-on-or-off

Nowadays frankly I don’t care, I get on the board and enjoy the ride I don’t overanalyse anything life is short too get hung up on this.
If the board is sanded I give it a sanding once a year if it got dirty.
Gloss is beautiful.
That’s it.

[Wing 11]

Are american cup boat matt or polish?

If someone knows ,they know for sure..
too much money+knowleged they have to solve this problem..