Super Jet What resin/glass on my sn build

[Sven]

Hi all
I am about to start a build on a sn superjet and have not done glass work on a ski before. Would something like the west systems 105/ 205 or 105/ 207 be ok for working on this ski? I plan to do a nose rocker and shorten the rear. I am also looking for advice on glass/ matting/ suggestions to use. Also I am from Canada so I would rather not order from out of country as shipping, duties, taxes, wait times are all to high.

Thanks in advance

 

[augustaf]

Yes, that is an epoxy resin, just right for your application. Strongly suggest you read up on how to do fiberglass work.

 

[Sven]

Yes, that is an epoxy resin, just right for your application. Strongly suggest you read up on how to do fiberglass work.

ok thanks, just started cutting the ski up tonight. I will have to make a build thread. I will do some video watching on the glass.

 

[yurkanip]

Yes, use epoxy resin like west system, OR cheaper, US composites is in my opinion almost identical in quality but cheaper in price. For reinforcing, whether on nose of a ski or sides I continue to use 1708 biax. It's fiberglass mat, and cloth sewn together at a 45 angle and is crazy strong. It is designed for polyester resin as that breaks down the fibers and makes it more pliable. BUT with a fiberglass/resin roller you can work in epoxy no problem. a roller is key and a simple metal roller on ebay will last you years. Key is to not have too much or too little resin in the fabric. To burst the myth that more resin would be stronger, as long as the cloth is saturated all the way through....less resin is stronger in glass cloth and a roller helps with that. Def watch some videos. A good set of videos is by gasserglass on youtube. He works with Poly mainly, but you can learn some tricks as cloth placement and angles as well as relief cuts around curved surfaces. Long winded, but this is my 2 cents as I have done a lot of glass work over the years, but all self taught starting with RC boats and hydroplanes before I started reinforcing ski's for friends and family.

 

[Sven]

Yes, use epoxy resin like west system, OR cheaper, US composites is in my opinion almost identical in quality but cheaper in price. For reinforcing, whether on nose of a ski or sides I continue to use 1708 biax. It's fiberglass mat, and cloth sewn together at a 45 angle and is crazy strong. It is designed for polyester resin as that breaks down the fibers and makes it more pliable. BUT with a fiberglass/resin roller you can work in epoxy no problem. a roller is key and a simple metal roller on ebay will last you years. Key is to not have too much or too little resin in the fabric. To burst the myth that more resin would be stronger, as long as the cloth is saturated all the way through....less resin is stronger in glass cloth and a roller helps with that. Def watch some videos. A good set of videos is by gasserglass on youtube. He works with Poly mainly, but you can learn some tricks as cloth placement and angles as well as relief cuts around curved surfaces. Long winded, but this is my 2 cents as I have done a lot of glass work over the years, but all self taught starting with RC boats and hydroplanes before I started reinforcing ski's for friends and family.

Right on, Thanks for the detailed reply. im going to see what my local epoxy option are here soon. thanks for the cloth info aswell.

 

[Vumad]

Yes, use epoxy resin like west system, OR cheaper, US composites is in my opinion almost identical in quality but cheaper in price. For reinforcing, whether on nose of a ski or sides I continue to use 1708 biax. It's fiberglass mat, and cloth sewn together at a 45 angle and is crazy strong. It is designed for polyester resin as that breaks down the fibers and makes it more pliable. BUT with a fiberglass/resin roller you can work in epoxy no problem. a roller is key and a simple metal roller on ebay will last you years. Key is to not have too much or too little resin in the fabric. To burst the myth that more resin would be stronger, as long as the cloth is saturated all the way through....less resin is stronger in glass cloth and a roller helps with that. Def watch some videos. A good set of videos is by gasserglass on youtube. He works with Poly mainly, but you can learn some tricks as cloth placement and angles as well as relief cuts around curved surfaces. Long winded, but this is my 2 cents as I have done a lot of glass work over the years, but all self taught starting with RC boats and hydroplanes before I started reinforcing ski's for friends and family.

The part about 1708 being for poly resin is not correct.

Chopped mat is held together with starch. The styrene in the poly resin disolves the starch allowing the poly to penetrate it. Epoxy will not disolve the starch so you end up with too much resin and a big mess.

1208, 1708, the chop is held togethef by being sewn to a weave. Because it is sewn it doesnt need starch to stay together. Thats why epoxy works so nicely with it.