ResinX Twinfin and "Skate Fins" Revisted

General Discussion
1

Made this one with 1 point-something lb density EPS foam. We ordered a 2 lb block, but based on the bead size, I think we got something with a lighter density. Regardless, I made this twinfin with 4 oz uni-directional carbon fiber perimeter stringers and glassed it with “Resin-X.” Single concave running to a semi double concave between the fins and flat at the tail. I say semi double concave because it’s really a single with a little roll in the middle of it, sort of a raised V. The fins inspired by Greg Webber are made from a skateboard deck using the concave to get the inside curve. Finished weight, right at 5 lbs. 6-2 x 20 (dead center) x 13.5 nose, 15.5 tail. I have since added twinzer finlets to it in an effort to increase the board’s drive. It’s light, loose, and strong! Definitely got some spring to it.

BTW- some of the pics are of the board pre-sanding.

edit: BammBamm808 was a huge help giving me insight on the nuances of using Resin-X, lots of great advice.

Deck:

Bottom:

Bottom Presand:

Presand showing the fins’ inside curve:

I guess this one could go in Shwuz’s plywood fin thread (note the hole where one of the truck bolts would go):

2

Nice looking board and fins. How did you do the red bit on the fins? Is it paint or a resin tint?

3
Quote:

Nice looking board and fins. How did you do the red bit on the fins? Is it paint or a resin tint?

It was easy! Middle ply of the skate deck was red, don’t know how they do it, but I assume it was dyed somehow, bottom was red (foiled off) deckside (flat insides of fins) was black.

Thanks,

Allen

4

So rad, AL! Great fins, great everything, looks like to me.

Love the truck bolt hole.

Would like to see a profile shot if you have one–

what pad is that ?

5

Thanks!

Deckpad is a modified Da Kine longboard pad, covered a little more area since I wasn’t sure where my feet would go.