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DC kiteboards a new look and new toys (surfboards)

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jon mod 17
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DC kiteboards a new look and new toys (surfboards)

Postby jon mod 17 » Tue Sep 13, 2005 3:55 pm

hey everyone u guys should really take a second to check out all the really cool info on derek's website, it explains alot of things about boardshaping and why he shapes certain ways for certain styles. Also he is making some of the sickest surfboards with or without strapes, check it out.

http://www.DCkiteboards.com

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Postby Dwight » Tue Sep 13, 2005 6:14 pm

Derek,

You out there? I've got a question. You are using EPS foam with epoxy. Thinking back to my windsurfing history, we used extruded polystyene with epoxy. In the early years, epoxy over EPS blew up when exposed to heat. What has changed since those days?

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Postby dereck » Wed Sep 14, 2005 2:12 am

hey Dwight,
sup?

For one, I am using a denser foam that what we had available back then. So it has more inherent strength on it's own. They have made big improvements in this area thanks to the packing industry...
Second, and this still holds true for most epoxy boards, STAY AWAY FROM DARK COLORS and SUN! :)
Any clear epoxy board really, will be affected by tropical sun and heat!.
Another reason, and the biggest I think is that Epoxies have come a long way as well (or is now readable available to me that was not before) and can handle heat a lot better.... Even some of the good epoxies will not do this.. Like west system, which is a relativity good resin, still can not handle sun and heat very well. It softens at a pretty low temp and thus requires painting to protect it from UV. They are some great resins out there (expensive) that do hold up a lot better now..


:thumb: good question.
regards,
DC.

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Postby hein » Wed Sep 14, 2005 2:29 am

I build my surfboards with a wood capped Clark blank
laminated in polyester (std) or solid H60 with a one shot
full wrap vacuum bagged epoxy skin. Diab has been
growing the H60 with an updated formula and it has
wonderful material props. Really close to H80 but with
a smaller cell size and 25% less weight. I was lucky to
get a hold of some 3" thick blocks from my buddies at
Diab. Machines really nice.

My own personal epoxy over H60 5-5 weighs right at
4lbs with fins and full deck pad. I found some really
light weight EVA waffle that is nice on the feet. Easier
than wax.

Take a look:

http://www.impact3d.com/hein_surfboards.html

CNC machined single to double concave of course.

-Hein

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Postby foggybottom » Wed Sep 14, 2005 3:36 am

Dereck,
those waveboards look really nice.

Hein, your waveboard looks fughly man. Whooo cares if you're acurate within .0000001" if you're drawing outlines like that? There's no flow to that thing. You need to copy some of Derecks templates....

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Postby hein » Wed Sep 14, 2005 4:28 am

I appreciate the feedback and you are right. It's not shaped like
a regular surfboard. I added more width in the tail so it would
work a little better edging against the kite. The rocker is a little
flatter too and the nose less pointy so it won't poke out your
eye when it comes after you in the surf. I think that makes it
look weird to a hard core surfer like yourself. This board is
not for the dedicated surfer. It's more for the non-surfing
kiteboarder who wants to liven things up by riding a strapless
surfboard. If you look at in that light it probably is more on
target.

Derek is using his surfboard templates which I am sure
are awesome for surfing. I started in that direction too but
ended up with this outline due to what I was feeling on the
water. This board seems to work good with a kite in small
mushy surf that would likely be the conditions a kiter new
to riding a strapless surfboard would use it in. It has
thinner softer rails so it edges better. There is no way
you can ride this board with straps or in big surf. I'm
working on some small wave chips for that. You can
see them at this thread on nwkite:

http://nwkite.com/forums/viewtopic.php?t=577

I got hammered by a few folks in that thread too. It's
Ok, I can take it. It's all important information to me.
market research if you will.

So, what do you think of those outlines? I'll be doing more
testing with the surfchip boards in TX this fall.

In all honesty the image of the 5-5 needed resizing and
as a result looks kinda bad. The board looks better in real
life. Still not a traditional shortboard look though.

-Hein

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Postby dereck » Thu Sep 15, 2005 4:40 pm

I gust got a couple more surfboards completed and I will post some pic of them up here soon... :thumb:

question?
What's the consensus?
Straps or straps less for surfboards?

Just trying to gete a feel for what is out there.

regards,
Dereck.

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Postby EH » Thu Sep 15, 2005 6:06 pm

System Three makes a UV Resistant Epoxy called SB-112 surfboard resin. This epoxy has UV resistance so you don't have to paint over carbon or fiberglass board. It is stronger then polyester resins, and has the UV protection that normal epoxy does not.

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Postby hein » Thu Sep 15, 2005 6:29 pm

SB112 leaves little or no amine blush
which makes for better paint adhesion.
It works great with a one shot vac bag
process. You can get if from Fiberglass
Supply.

I think a lot of surfboard shapers are using
Resin Research since head chemist and
owner(?) Greg Loehr is a well known surfer.

I really wan't to try a one shot infused
board since it would be so easy to do
the laminate schedule dry with a full
wrap and then suck in the resin under
29 inches. Gotta try that this winter.

-Hein

P.S. No need for a shapers forum. I prefer
hijacking threads. -It's more relevant.

P.S.S. my vote goes to strapless! maybe
'cause it goes with bra-less :) -or panty-less :D
Unless maybe you are towing in with a kite.

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Postby dereck » Thu Sep 15, 2005 7:28 pm

yea, I use Greg's resin...
good stuff :thumb:


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