Author Topic: Diolen layup  (Read 3162 times)

55NSup

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Diolen layup
« on: September 03, 2014, 10:42:41 AM »
First board I built using lamination of 200g twill carbon fiber and 160 g e-glass. Both layers overlapped on rails. Using 1lb builders eps sealed with ultra light  latex spackle. Its holding up well. Was pretty expensive with full Cf.

This year im building a race type board for my 9 year old. A 10-6 x 24 with a 2015 Naish wave piercing nose.

Im thinking of this layup to increase impact strength and reduce cost: the boy bounces off hard objects like docks and floating bathing platforms.
100mm wide 200 gram non-crimp Unidirectional CF on centerline,   300 g Diolen, 165g glass. Both sides, overlapp on rails.
Add extra layer of Diolen under standing area. Will be vacuum bagging this time and using wetout table.

Is it worth the cost and hassle to use the Diolen?
Will it prevent dings better than glass?
 It costs 2x what glass does. = + 20$ ( no problem)
I can also get black 200 g Diolen but it costs 4x glass =+ 40$ ( dont care it is black, but perhaps 200g is better)
200g twill Cf is 9x glass cost.=+ 200$

I see on R&G composites site that a 300g twill kevlar will take 424g epoxy, be 0,59 mm thick and weigh 724g per meter squared. Hand layup. Should be same with Diolen. Add 290g for glass per m2. 
200g Cf and 165g glass. = 750 g / m2
If I assume im adding 290g per m2 and board is 3m2 total = 870g. Ok round up to 1000g

Is that 1 kg going to give me significant strength against impact?

supuk

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Re: Diolen layup
« Reply #1 on: September 03, 2014, 12:51:29 PM »
First board I built using lamination of 200g twill carbon fiber and 160 g e-glass. Both layers overlapped on rails. Using 1lb builders eps sealed with ultra light  latex spackle. Its holding up well. Was pretty expensive with full Cf.

This year im building a race type board for my 9 year old. A 10-6 x 24 with a 2015 Naish wave piercing nose.

Im thinking of this layup to increase impact strength and reduce cost: the boy bounces off hard objects like docks and floating bathing platforms.
100mm wide 200 gram non-crimp Unidirectional CF on centerline,   300 g Diolen, 165g glass. Both sides, overlapp on rails.
Add extra layer of Diolen under standing area. Will be vacuum bagging this time and using wetout table.

Is it worth the cost and hassle to use the Diolen?
Will it prevent dings better than glass?
 It costs 2x what glass does. = + 20$ ( no problem)
I can also get black 200 g Diolen but it costs 4x glass =+ 40$ ( dont care it is black, but perhaps 200g is better)
200g twill Cf is 9x glass cost.=+ 200$

I see on R&G composites site that a 300g twill kevlar will take 424g epoxy, be 0,59 mm thick and weigh 724g per meter squared. Hand layup. Should be same with Diolen. Add 290g for glass per m2. 
200g Cf and 165g glass. = 750 g / m2
If I assume im adding 290g per m2 and board is 3m2 total = 870g. Ok round up to 1000g

Is that 1 kg going to give me significant strength against impact?

im not sure about the various properties of diolen but im pity sure i repair a  board that was made from it or something similar and being polyester it did not sand and behaved similar to kevlar so i think baging would be a must. The prices you quote seam a little high. i have got it from here before, its only a little more than glass and about 1/3 the price of carbon

http://www.ecfibreglasssupplies.co.uk/p-1892-black-diolen-200g-twill-weave.aspx

55NSup

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Re: Diolen layup
« Reply #2 on: September 03, 2014, 01:13:21 PM »
Guess I really should do a test piece,  hoping someone already tried it...

PonoBill

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Re: Diolen layup
« Reply #3 on: September 04, 2014, 08:38:04 PM »
How about Innegra as the base layer (no glass) then carbon over it with perhaps veil to reduce the amount of hotcoat pinholes.
Foote 10'4X34", SIC 17.5 V1 hollow and an EPS one in Hood River. Foote 9'0" x 31", L41 8'8", 18' Speedboard, etc. etc.

willi

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Re: Diolen layup
« Reply #4 on: September 27, 2014, 06:38:12 PM »
Innegra is great as long as you don't sand through whatever is on top of it ( i  know i sand a bit too much)
as the fuzz from the Innegra is hard to get rid of. (Innegra is woven spun poly / like milk bottles) and doesn't like to be sanded - BUT is a terrific product for impact---
I have found a lowering tempature (turn the AC on high -) when hot coating stops pinholes

willi

 


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