Foil Board Twin Track Box Install How To
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- Опубликовано: 27 авг 2019
- In this video we'll show you how to install a twin track foil board box cassette.
Installing a foil board twin track box into a board entails:
1. Route an a recess into the foil board to install the foil box into.
2. Glue the twin track foil box in place with an epoxy putty made from 3M glass Bubbles and Cabosil thickener
3. Sand the squeeze out down from around the perimeter of the foil box and sand the foil box to match the bottom contours of the board (if necessary)
4. Cap over the foil box with 3 layers of 6oz fiberglass fabric
5. Sand fiberglass cap smooth
6. Paint
7. Mount up the hydrofoil and go have fun! 
Хобби
Sweet job
Do I need to reinforce a 10’6” SUP board in order to foil with it?
Anyone know where you can find a decription/explanationof the different tyopes of boxes and their pros/cons?
Thanks
I’m building a Downwind foil board that will be long and stringerless. What’s the best way to tie the foil box into the upper deck? What weight and how many layers do you recommend? One 6 oz carbon one 6 oz s glass, etc? I want to keep the weight low so not sure if I should do glass at all or just carbon? Thanks!
Great video, and very good explanation on comment below (about needing to go to deck for strength)
I’m gunna try it, I’ve got the glass and the resin.
...but can you tell me simply what’s a good ready made glue to first use for putting in the box?
I’m in the Philippines and on small island, it’s difficult to get exact things like bubble mix!
Cheers
We have some ready made epoxy glues and putties but I would assume those are not available in the Philippines. For thickening cabosil, aerosil, fumed silica, are all the same, fine sawdust can work too. For extending or making a light putty, 3m bubbles, dicapearl, phenolic microspheres, q-cell, glass bubbles are some options and common names. If there is someone that builds surfboards near you or a supplier they most likely have some of those.
Nice Work. Check out the festoon RAS 115 to add to your collection, sweet little vac grinder and its on sale now for $215
Nice video! Really clear steps and technique. 2 questions--how did you ensure that your foil mast would be square (in the side-to-side dimension) to the bottom of the board, AND how did you determine the longitudinal placement of the foil? Which foil setup did you have in mind when placing the box? Thanks!
That board is pretty flat in the back so I didn't worry too much about being square from side to side. If I was I would have mounted a mast on it during gluing to check it and taped it in place. As to forward and back, I wanted to put it back a little further but since it already had the finbox in the tail that I didn't want to remove we ended up a little further forward. I am running a Ride Engine Manta 99 wing in it on a 28" mast in it.
Great video
¨
Where to buy the box?
what is exactly the mix that you do for the resin ? epoxy + hardener + micro balloon?
We stock the boxes, here is a link to the product: shop.fiberglasssupply.com/Foil_Boxes-Foil_Dual_Track_Box_Cassette.html
The putty is pretty much the same as what I make for ding repair, with a little less cabosil in it. Here is a video on making that putty: ruclips.net/video/eK1vlG46XAY/видео.html
It is epoxy and hardener (probably a slow hardener if the board has EPS foam in it) about the same volume of 3M bubbles as the resin, and just enough cabosil to keep it from running.
Y en el laminado no tiene sentido poner maskin tape, la resina no penetra dentro del box
Where do you get the box? I need a few of them
We stock them, here is the link to the product: shop.fiberglasssupply.com/Foil_Boxes-Foil_Dual_Track_Box_Cassette.html
I see this was fitted 4 years ago! I want to fit a PVC twin hydrofoil box on my board , therefore my question is: did the box work and not break off? and are the plastic inserts strong enough for the hydrofoil attachment?
P.S has anyone on youtube used these PVC plastic twin boxes successfully?
You need to post video of attaching the foil and also some video of the board doing its work. The payoff vid.
pro tip : you can watch series on Flixzone. I've been using them for watching all kinds of movies these days.
@Christopher Lennox Yea, have been watching on Flixzone for since november myself :)
Silly question
The board was an epoxy board ?
Or regular poly ?
And the resin you put was epoxy or old school poly ?
Thanks and great video
Good questions, EPS core on the board(styrofoam). I used epoxy resin.
Were do i buy this foil Mount insert
fiberglasssupply.com/foil-dual-track-box-cassette/
What are the box dimensions?
12" x 6" x 2.375"
Hola, un trabajo muy amateur desde el router hasta el preparado de resina y pegado, al fillet le falta microesferas y la aplicacion debe ser en un punto central para evitar que quede aire.
El proposito de este video es mostar a un principiante un metodo para instalar una caja de foil usando los basicos herramientos necesarios. En teoría poniendo el pegado en un punto central evitaría aire pero en practica no funciona así y si hay que sacar la caja para poner mas pegado us un relajo grandisimo.
I think the fin box is not ANCHORED to the deck, IMHO it is crucial
That is an interesting comment, keeping in mind that foiling is still kind of new, that there are a number of different foiling disciplines (kite, sup, surf, wake, etc), and that board construction varies widely let's explore what you might want to consider when installing foil box. What we want is an install that is strong enough to keep the foil attached to the board. There are generally 2 issues that we are concerned about one is rolling the boxes out and the second is having them pull out. Keeping in mind that fin box installation has evolved from surfing and sailboarding, in which the primary failure mode when going from surfing to sailboarding is rolling the box, which is both a function of the added lateral forces on the fin in sailboarding and moving to lower density foam cores to keep the high volume boards light but resulting in a physically inferior material surrounding the fin box, the sailboard industry moved to adding stringers around the fin box or bedding the fin box in a higher density foam insert that transferred the forces to a larger surface area so that the box would not roll out (for single track US boxes) or they switched to a different mounting system like the Tuttle box or power box. So using the cassette mounted boxes (what was shown in this video) helps transfer the loads over a broader area by having the boxes mounted in a high density foam that can absorb and transfer those stresses to the surrounding lower density foam without failing. The second issue which is perhaps more particular to foiling is box pull out, this issue is going to depend on what kind of board it is and what its intended use is. Pullout though is different from roll because there is a force trying to remove the box from the board, i.e. the foil is trying to pull away from the bottom of the board and remove the boxes (in a crash or tumbling in the waves). A standard fin box install isn't designed for this kind of stress. Anecdotally I had a customer bring in a SUP/Sail hybrid board that was showing signs of the fin boxes being pulled out of the board, part of the issue is that the fin boxes were installed in a way that there was no mechanical way of holding them in place from a pullout beyond the epoxy putty that was holding them in the board. What is different about the install shown in this video is that after the cassette is installed the whole thing is glassed over with multiple layers of 6oz fiberglass fabric, including glassing over the boxes. This is important, it ties the cassette into the board structure and it provides more support for the boxes to hold them in place acting as a way to dissipate the stress that accumulates at the front of the box when something is hit.
So back to the question of tying into the deck. On this particular board I anticipated I would surf it in waves up to chest to head high, rollers most likely and not breaking. This board does have a center stringer and the EPS is 2lb density (the highest standard density and best compressive strength of the standard EPS densities), so I am not really concerned about roll out. I am also not concerned too much about pullout given the way the box was glassed in and the board's anticipated use. However I have had some thoughts about adding a mast track to the deck and wind foiling with it, in which case I may want to anchor it to the deck or add a Tuttle style foil box to the board.
When deciding whether to anchor to the deck I would look at:
- Materials used to build the board, i.e. foam density, skin construction
-Is there a stringer?
-Anticipated use, i.e. high speed, long masts, attachments to the board (mast and sail), large waves or breaking waves, etc
If it is going to be used in applications that will generate higher stresses (i.e. wind foiling or surfing large waves) you may want to anchor to deck or switch to a Tuttle style fin box. Also if the board is built with 1lb density foam and or stringerless you may want to anchor to the deck. If anybody is going to do that and wants guidance on some ways to do that please give us a call.
Incidentally I have another board that is 2lb EPS that we use for wake foiling, that board has Futures Strongboxes in it that were routed directly into the board and glassed over, no cassette, no tie in to the stringer. We've used and abused that board quite a bit and the boxes don't show any signs of stress around them.
@@FiberglassSupply "A standard fin box install isn't designed for this kind of stress." We need (if found) to use the windsurf mast track from CHINOOK, their boxes are 50% stronger than the US fin boxes
We stock the Chinook boxes, there are multiple benefits to them, they have glass filled plastic and they are done in a a one piece construction so they are stronger. Most people don't know this, but a standard longboard fin box is molded as 2 pieces and glued together resulting in a box that has a weak point built into it.
@@FiberglassSupply AWESOME!!!!!!!!! thanks for that, the catalog is not clear whether the 10" chinook comes with big center stick which is very handy to anchor as well
That’s a really great explanation, thank you. I am interested in how to tie into the deck but want to use the track box system and leave the deck intact.
I’ve been considering ways to do this and kept coming back to making 2x 1” grooves, running the length of each track, from the bottom of the recess for the box to the underside of the deck. Then as part of the step to fix the track box in place, filling the groves with an epoxy and chopped glass mixture.
Do you think I’m on the right lines?