Anyone knows if the RR 2020 is yet available in France/europe ?
I’m planning on building a stringerless “ding proof” longboard using fiberglass and Diolen, a polyester fabric similar to Xynole. According to Greg Loehr, the RR2020 epoxy resin is more appropriate for the Diolen/xynole but I can’t find a supplier over here in europe. Or maybe someone knows another resin with similar properties.
ime, xynole is almost worthless in surfboard laminates. the stuff is very difficult to wet out and work with. not much better than burlap. imo, the key to making ding resistant boards (note i didnt say ding proof) is to not only use resilient laminates but resilient cores. much easier to make the former than it is to make the latter. surfboard foams typically dont spring back. after decades of use, plain old fiberglass is still incredible stuff…man’s best original synthetic high strength to weight material.
the other way to do it is making the skin so stiff and strong that it doesnt deflect on impact. but then the ride quality suffers tremendeously. you should look at the different fiberglass fabrics available…there are literally hundreds of models. with enough time effort and money you could put together a great combination. sorry i couldnt tell you what you wanted to hear.
hi, seabase in the uk distribute rr 2000, so i should imagine seabase france (hossegor) should have the 2000 also, i have also used rea epoxies which are french made ,these are good clear epoxies also, pete
ime, xynole is almost worthless in surfboard laminates. the stuff is very difficult to wet out and work with. not much better than burlap.
OK, then we’re probably not talking about the same material. What I intent on using is a polyester fabric called Diolen
and I wrongly thougth it was similar to xynole.
Diolen has properties similar to kevlar as far as ding resistance is concerned. It is widely used in kayak hulls.
Here’s some info about Diolen : http://www.ecfibreglasssupplies.co.uk/store/diolen-265g-linear-p-222.html
hi, seabase in the uk distribute rr 2000, so i should imagine seabase france (hossegor) should have the 2000 also, i have also used rea epoxies which are french made ,these are good clear epoxies also, pete
Hi Pete,
Thanks for the info. In fact I can find some very good epoxy resin locally (atuacores.com) and I knew about seabase, but what I’m looking for is a slightly more flexible epoxy (RR 2020) than what is normally used for surfboards (RR 2000) and apparently Seabase only distributes RR 2000.
I want to use Diolen and a flexible epoxy for this stringerless longboard project for two reasons :
I want to laminate the board with regular fiberglass + diolen on the back 2/3 and only diolen on the front 1/3 in order to be able to flatten the rocker while noseriding such as with a step deck but without any step.
I want a ding proof board.
you want to make an indestructable surfboard
contact these guys and see if you can get on their development list
http://www.oceanit.com/index.php?option=content&task=view&id=539
I read the link info, thanks.
But word of warning; canoes and kayaks are built way differently than surfboards and my previous comments still apply. But hey you can certainly try it; just dont set your expectations very high cuz it will likely ding lots more with that stuff.
I read the link info, thanks.
But word of warning; canoes and kayaks are built way differently than surfboards and my previous comments still apply. But hey you can certainly try it; just dont set your expectations very high cuz it will likely ding lots more with that stuff.
You may be right and no matter what I 'll do some test panels first with different materials conbinations. I’ll post the results (that’ll be probably in spring).
pierre, pm me if you’re interested in epoxy flexibiliser. still got some from R&G (http://shop.ezentrum.de/…id=27&sprachnr=1). go to epoxy than additive.
salu2
uzzi
Thanks uzzi. PM sent !
I’ve made over 100 boards with Xynole and got excellent results. In fact we still make them in FL and most the guys at the factory there ride exactly that. It does require use of 2020 resin because of it’s elongation. Other resins will crack. I do agree that glass is still excellent but the xynole does make boards that are nearly dingproof.
I’ve made over 100 boards with Xynole and got excellent results. In fact we still make them in FL and most the guys at the factory there ride exactly that. It does require use of 2020 resin because of it’s elongation. Other resins will crack. I do agree that glass is still excellent but the xynole does make boards that are nearly dingproof.
Hello Greg,
Many thanks for answering. Any chance I can get some RR 2020 in France ? If not, any tips on how to modifiy epoxy by adding some flexibilisator such as mentionned by uzzy ?
For an EPS (30kg/m3) longboard laminated with Diolene or xynole, will it be stiff enough or do I need central or perimetric stringers ?
I’ve been also thinking about sandwiching Spheretex SN between two layers of xynole : would it be relevant ?
Regards,
Pierre
I would think that adding Spheretex would be heavy. We always did a 4 oz Xynole with a 6 oz glas over on the deck and a 4 oz xynole with a 4 oz. glass over the bottom. Adding some white opaque color will add some flexablity to the resin. You could also add just a bit (2%) of ethylene glycol or propylene glycol … (antifreeze).
greg, i’m allways looking for ways to protect my (balsa)rails better. would you think that it works with balsa ? what weight should i look for if i glas under a 4oz deck layer (Rails only)?
salu2
uzzi
I would think that adding Spheretex would be heavy. We always did a 4 oz Xynole with a 6 oz glas over on the deck and a 4 oz xynole with a 4 oz. glass over the bottom. Adding some white opaque color will add some flexablity to the resin. You could also add just a bit (2%) of ethylene glycol or propylene glycol … (antifreeze).
Hello Greg,
Great news, I finally found a french distributor that could to get me some RR2020 !
You said you use 4 oz Xynole with a 6 oz glas over on the deck and a 4 oz xynole with a 4 oz glass over the bottom. Is that for shortboard ? Would it be strong/stiff enough for stringerless 3.25" a thick longboard out of a 30kg EPS blank ?
Pierre.
Hi Pierre,
do you have the name or link for the RR2020 in Europe.
thanks
Update: I can see seabase is getting RR2020.
How does diolen compare in price to e cloth and is it any harder to work with than e?
Hi Pierre,
do you have the name or link for the RR2020 in Europe.
thanks
Update: I can see seabase is getting RR2020.
Hi claude,
Seabase told me they would receive some in the coming weeks.
How does diolen compare in price to e cloth and is it any harder to work with than e?
I’ll let you know how it goes once I try it (in february probably).
Thanks for that.