thayercraft has some and while it is very expensive, i’m intrigued. I’ve used it for a lot of other things (leash loops, sail ties, etc) and it is very very strong stuff.
anyone have any experience with this?
all the best
Spectra cloth is used by many ghost shapers…
hi greg, i hav/nt used any spectra myself , it seems quite difficult to get here in the uk , it does seem ideal material , lighter that water ,one of the strongest fibres there is , bright white , is this the material coil use ?
whichcraft in the canery islands have used spectra for years , its called dyneema in europe.
http://www.witchcraft.nu/wave.php#5
snappage resistantance would be its main function i would think in surfboard use ,sandwiched between glass over 1.5 foam ,perfect, pete
pete smokin mirrors bro’’ dynema is a polypropylene. spectra is a non woven spun bound nylon
cheers huie
Dyneema in europe (spectra?) is a PEHM fiber. It’s a high cost polymer (“plastic”) fiber. Can be use as others “plastic” fiber for high impact resistance (resilient fiber) as innegra, kevlar, olefin, dynel, xynol, skinz, etc. As many others plastic fiber dyneema have a bad adherence with resin and need many care to be well laminate. Glass+plastic fiber with not too stiff epoxy resin on EPS core can produce light, ultra durable and flexible surfboards.
Sorry for my frenglish
**its a f##king polypropylene keep it simple
**
why all the smoking mirrors the question was about spectra?
cheers huie
[img_assist|nid=1046610|title=innegra|desc=|link=none|align=left|width=480|height=640]1 layer spectra 1 oz
1 layer eneggra 2 oz
**1 layer e glass 4oz **
**clear gloss coat rubed out
**
under vac over two yrs ago
** sorry i have moved on
**
had to look it up on Thayercraft's website:
This stuff is clearly a woven product and Thayercraft says it's polyethylene. I don't know the different properties of polypropylene and polyethylene, maybe the same?
Here's their spiel on it:
"Spectra fiber 1000, formerly known as 17103, from Honeywell, is an extended chain polyethylene fiber and has one of the highest strength-to-weight rations of any man-made fiber. A highly processed ultra-high molecular weight polyethylene, is stronger and lighter than most commercial high-modulus fibers. A bright white polyethylene, it is, pound-for-pound, ten times stronger than steel, more durable than polyester and has a specific strength that is 40 percent greater than Aramid fiber.
With outstanding toughness, Spectra fiber can withstand high-load strain-rate velocities. Light enough to float, it also exhibits high resistance to chemicals, water, and ultraviolet light. It has excellent vibration damping, flex fatigue, and internal fiber-friction characteristics, and Spectra fiber's low dielectric constant makes it virtually transparent to radar.
Spectra fiber is used in numerous high-performance applications, including police and ballistic-resistant vests, helmets, and armored vehicles, as well as sailcloth, fishing lines, marine cordage, lifting slings, and cut-resistant gloves and apparel. Style 17103 is 3.33 oz/sq yd. The rolls are 60" wide, with a greige finish and are available in 10 or 20 yard sizes. You may call us for a larger size roll."
BTW- in case anyone is wondering, a 10 yard 60" wide roll (3.33 oz. per yard) costs 219.03 with free shipping.
oh god this is going to be like the ineggra thread
leave me out
**cheers huie
**
Spectra seems to be the same product than dyneema, it’s polyethylène High modulus fiber. It’s one of the best and expensive polymer fiber, high toughness fiber and bad resin adhesion. So spectra is good with glass for me there is a place in laminating surfboards. Isn’t it the question ?
I use it one time, with carbon, for a part for a competition sail boat.
sorry for my frenglish
hi , for huie ( dynema is a polypropylene.) , http://en.wikipedia.org/wiki/Ultra-high-molecular-weight_polyethylene
I have used it on several boards and it works good . Most of the boards were 1.5 eps epoxy but I did do some that were xps vac bag too . A friend got me a short sample roll from a company in canada that made it . I would have done more but I had to buy 200 rolls or so then . If you can get it and you dont mind spending the money I would build one .
GT, you are a troublemaker. If you get people interested in more advanced fibers, the next thing you know they'll start looking at more advanced lamination techniques; then you've messed up the whole industry's applecart and it's a slippery slope straight to ruin. Don't you know e-glass and PU blanks with pieces of wood down the middle are sacred?
Ha Ha!!
Love it…")
Mike, buddy of mine, I know I stepped in it here. I’ve made you and Huie mad. I withdraw my question.
Everyone, move along here. That’s right. Move along. It’s over, go back to your homes. Nothing for you here.
By the way, after the mini sim lawyer thread, I have decided to copyright “GT”. .
it is interesting that spectra dynema got mixed up by me for another spectra fabric i have used here
mybe i let something slip?
**haa’’ g t sounds like a big fish
**
** cheers huie
**
DO IT! You could make a bundle suing old Henry…
From wikipedia :
"Dyneema and Spectra are gel spun through a spinneret to form oriented-strand synthetic fibers of UHMWPE"
Dyneema from DSM and spectra from Honeywell are the same thing, just different brandname. It’s like xynol and diolen, both are the same polyester fiber.
UHMWPE= **Ultra-high-molecular-weight polyethylene **is a type of olefin.
Sorry for my frenglish.
i thought i explained my self. but aparently not???
never used dyneema but stick to what i said not realy interested in wiki’’
quick lets google it. just use ineggra its cheaper
**cheers huie
**
Excuse me i don’t understand all well, my english is so bad !
I can’t find ineggra easily here and all others “mystic plastic” fibers are very expensive. After some search i found that all of this polymer chemistry is a war marks buisness were each chemist find “the magic perfect fiber, bla bla bla”. So i use an old “poly??” (i don’t really know what it is) carpet as a bukler between two layers of hand lam fiberglass and at same weight and low cost my laminate seems to be stronger and durable. Just what i need on my crappy( but costless) local EPS.
My goal know is just to make easily (i want to mastered shape) costless and durable surfboards that stay light an flexible.
Sorry for my frenglish.
yea you are right to much b sh#t
the best fibre out there is still wood in my opinion
** cheers huie
**