Divide Rides

Dtrain · Post by **Dtrain** » Thu Dec 04, 2014 8:28 pm

Thanks Falls . Just pulled another out.
Sitka/Yellow cedar
Triax basalt / carbon tow
Figured walnut topsheet

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gav wa · Post by **gav wa** » Fri Dec 05, 2014 4:18 am

That looks like a fair bit of resin squeeze out bro, what resin to glass ratio do you start at?

Oh and they both look sweet as too

gozaimaas · Post by **gozaimaas** » Fri Dec 05, 2014 4:53 am

Sick veneer

Dtrain · Post by **Dtrain** » Fri Dec 05, 2014 7:32 pm

I use about 1:1. 2x12.5" pieces of triax basalt weight 800grams @ 165cms . I will admit that we probably leave a little 2 much on the base prior to first layer, and on top of the wood topsheets. There's always table waste too as I wet out separate and then place.

Guys on here have made claims of only using 350 grams for a board, or say if resin is hittin the floor, your using too much. That's all bs.

I have recently thought of trying to use a little less, and letting the resin start to "gel" at a lower pressure, before squishing to full pressure. This would eliminate a lot of squeeze out.

Some of the ski scientist guys that rarley post pics of anything may chime in here with the "proper" way to distribute resin. Haha

vinman · Post by **vinman** » Sat Dec 06, 2014 4:08 am

I also start out with 1 to 1 as measured by the total weight of the FG.

gav wa · Post by **gav wa** » Sat Dec 06, 2014 7:22 am

Yeah I use a 1:1 ratio too and dont get as much squeeze out. That's why I asked.

Your obviously getting good results so what your doing is working.

I think my pine core material soaks up a fair bit though as I've had more squeeze out on the full bamboo core I did previously.

I don't know how anyone could build a board with 350 grams of resin.

vinman · Post by **vinman** » Sat Dec 06, 2014 2:02 pm

yeah I usually make pre-measure 4 batches of 200g resin and a 100g batch just in case. with hardener for Entropy CPM that comes out just under 1300g of mixed epoxy. My composite usually weighs out around 1000g. 2 length of 12.5' wide 22 oz triax plus biax binding mats plus I have to add some in for top coating the veneer. There is almost always some waste and I get a fair amount of squeeze out. But I'd rather have a slightly resin rich composite vs. a dry composite. 350g of mixed epoxy barely wets out a single layer of glass.

falls · Post by **falls** » Sun Dec 07, 2014 9:32 pm

I use 4 x 250g mixed cups + 3 x 125g mixed cups usually for a 180cm+ length. Even with that much I sometimes feel like the glass could absorb a bit more (ie. look a bit wetter).

I usually press to 50psi in the bags immediately and turn the heat on too. But my heating program heats to 80C over 30 minutes. Lately I have been wondering if I should be heating more rapidly to get the epoxy to cure rapidly rather than warm up, get runny and press out before it sets. The last pair I made with clear topsheet I could see the glass fibre pattern quite clearly (whitish - epsecially where over the top of the carbon fibre) even with a more than 1:1 ratio of epoxy to glass when wet out.

vinman · Post by **vinman** » Mon Dec 08, 2014 7:26 am

Falls I pressureize to 60 psi and hold that for 5 min without heat to let he epoxy kind of flow without heat, then I hit the heat and ramp to temp of 180f. This takes about 5-8 min. I get runny squeeze out for about 5-10 min before the epoxy gels. I get nice flat bases this way. I've had 0 delams in 45 pair with this method.

Dtrain · Post by **Dtrain** » Sun Jan 25, 2015 12:56 pm

Been a while since I posted. We've been working hard pumping stuff out as fast as we can. Figured Id share this as it's out of our ordinary realm!

Pressed a board for my kid.
84cm
Core thickness 1.5-5-3-5-1.5
Bottom glass 9oz uni
Top glass 9oz 90deg
Core sitka spruce
Base black sintered
Topsheet yew wood veneer
Full urethane sidewall

Idea was cool the top faster and have the 90 degree glass pull the board
Convex for a catch free base for the kid. Absolute success. His bindings may flatten it out a little. Little tricky to grind, but no issues. First snowboard with full wrap edge

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pmg · Post by **pmg** » Sun Jan 25, 2015 1:02 pm

nice work! Like the idea of getting it convex this way. And the new owner looks super happy :)

Dream · Post by **Dream** » Mon Jan 26, 2015 10:20 am

You guys are doing some awesome and inspiring stuff!

Dtrain · Post by **Dtrain** » Mon Jan 26, 2015 4:18 pm

Dream wrote:You guys are doing some awesome and inspiring stuff!

I'd like to think the three of us are making a reasonable effort. Thanks for that.

derek

Dtrain · Post by **Dtrain** » Tue Jan 27, 2015 7:53 pm

Kid wanted a fighter jet on his board, so I doctored up a graphic.
Plus got another splitboard pressed today.
Starbucks stir sticks are perfect for maintaining a 1/4" base gap while pressing.
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Dtrain · Post by **Dtrain** » Tue Mar 03, 2015 9:57 pm

Some more finished stuff

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