I was wondering, do you really need a fin patch under glass on fins? Seems like the cloth fared off the fin onto the board would do the same thing, right? Next thing is when doing a tinted lam where the deck and bottom are the same color and the rails are a shade darker, is the deck patch put on top of the colored lam? Wadda Y’all think?
Thanks,
Scott
Wadda Y’all think?
"…y’all come BACK now , hear ?? " …
…is what I think .
I was wondering, do you really need a fin patch under glass on fins? Seems like the cloth fared off the fin onto the board would do the same thing, right? Wadda Y’all think?
Yes, you do. The fillet (fin rope) holds against allot of fin stress, but the pressure on a fin under hi-stress (turning) conditions puts a substantial amount of pressure on the underlaying glass. e.g. – when a fin is pushed, the pressure is to stretch the fillet from the pushed direction and to compress the {fillet &} glass underneath on the opposite side of each fin.
Hope that helps.
Howzit scott, Those extra patches can mean the difference between a major repair and a minor repair if you break a fin off. Aloha,Kokua
No the deck patch is the first thing to hit the blank. I like using a real light weight volan 2 or 4 oz as a deck and fin patch. I do hope you are talking about a longboard? that way you get the green with out adding the weight.
If it’s a clear lam, I put the deck patch under the top lam and do 'em both at the same time. I HATE to see knee dents, and I believe that throw-away boards are a ripoff. Thus, I have also a stomp patch under my back foot, and I put this onto the rear deck of my heavier customers. I use all six ounce JPS cloth.
If the lam is colored, the deck patch ans stomp patch (if used) go over the tinted or colored deck lam. Yes, this makes for some careful hotcoating and sanding - that’s what the customer deserves and it’s what our experience is for.
As for fins… All the glass and resin under and around a fiin is supposed to be well adhered to each other as a unit. The fillet and glass up the sides of the fins is there to distribute fin loads to the foam.
It is intended that when Joe Customer drives his fins into the sand, a rock or another surfer, no damage is done. This is sometimes not the case, and the next best thing is that only the fin will come off. This saves a major excavation/fill/sanding to put back foam that may get torn out otherwise. The trick is to decide “how much is enough?” and that depends on how big the fin is, and how hard the rider, sand or rock will stress the fin.
Thanks Guys!!! I’ll keep using the patches under the fins.
Honolulu, you cleared it up for me regarding the deck patch and colored/tinted lam.
Thanks again,
Scott