H2S !
if you dont have access to the secret shark skin sauce, what sandpaper grit would you recomend for the finish on a fin? does it differ for fin type - single, twin, thruster, etc?
If you can find it, Rustoleum Anti Slip Clear, will get the job done. Previously I obtained it at Home Depot, by the single can. Can’t find it, except in bulk, by the case, now. Not cheap, but it is THE RIGHT STUFF. Merry Christmas !
Yes, it is.
muchas gracias!
I’m a bit late to the party.
I use two different profiles on my fins, depending on the use case.
When I need low drag at low speeds (low wind conditions in windsurfing), I go for a laminar profile and a smooth as possible finish.
When I need low drag at high speeds (traditional surfing and well powered wind conditions), I go for a turbulent profile with rough finish.
I put Rain-X on the bottoms of my boards and my fins.
Be careful with rain-x, do not get it anywhere near your eyes. I once wiped some sweat from my face not realizing the rag t-shirt I used had some rain-x on it, I got severe chemical burns in my eyes, extremely painful.
Might help combat Big Whitey.