Unable to use epoxy

[rasorinc]

The price is absurd. Go only with epoxy that has been used 1,000s of times in boat building. Why set yourself up for failure? Use these prices as a guide.
Raka has been around a while and sells a lot for boatbuilding and is very competitive in pricing and on glass fiber. Don't use poly on a wood boat and there are to many reasons to list.http://www.raka.com/

[Ilan Voyager]

No! stop. Too expensive, not marine. Useless.

Es puro robo hombre, y ademas no tiene ningun uso para construir un barco. Ahi es locura.
Bueno es tu vida haz lo que quieras pero cuando habras botado algunos miliares de dolares para tener una basura...

No: regular non waterproof plywood even covered of epoxy is TOTALLY USELESS.
30 years of experience dictates this assumption.
When you do not have the materials available you must change of method, not to try to use under-rated replacement erzats. It's like cooking, you have the product or you have not.

[fjapa]

OK... gotcha...
But if I can find marine epoxy does it stick to the polyester resin?

[PAR]

Epoxy will stick to polyester, but polyester will not stick to epoxy.

[fjapa]

Ok, that is what I wanted to know, thank you PAR.
I am interested on the designs that you have for a 15' fishing boat, but I can't find your e-mail address when I click on your name. My e-mail is fjapa (at) hotmail (dot) com. Please send me the information.

[PAR]

Click on my name and then click "send email . . ."

[Frosty]

What would happen if you mixed some epoxy with hardener then some resin with hardener and mixed them all together?

Then the resin would have to stick to the epoxy and you would have a mutant material that no one has seen before.

[fjapa]

Mmmm. I am not sure about doing that because I don't know if has been tried before. I am affraid that I could get a huge boom instead a new material

[marshmat]

Explosion? Probably not. (Keep the CoNap away from the MEKP though...)
Mutant material that you can't predict what it'll do? Yup.

[fjapa]

I asked my brother "the mouse" who is a chemical engineer and says that if we mix two resins (epoxy and poly) what probably is going to happen is that they will be crack because of the "reticulation" process is different. I am asking him if it's possible for us to fabricate some epoxy resin here (in an easy and cheap way of course). Does anyone know how complicated is to do it?

[Ilan Voyager]

There is a big confusion. No one with a bit of common sense will mix polyester and epoxy resins.

Whats is possible is to glue for example wood on a CURED polyester resin with epoxy.

But that polyester resin WILL NEVER BOND to a CURED epoxy resin as the amines will inhibit the curing of the polyester resin. As said by Par.

Stop drinking Thai beer.

[PAR]

You can use a binder coat of epoxy (special formulation of course) so you can improve the bond of polyester to epoxy. Gel coating over an epoxy repair would be a common example of this. But for the most part the bond isn't a good one.

Making epoxy isn't especially difficult if you have a reasonable chemical background. In your situation it might be difficult getting raw materials (resins), as these would likely have to be imported from one of the handful of companies that make them.

[fjapa]

OK... then I am going to research for more info on making epoxy and to convince my bro to help me ... I will post any result.
Thank you so much guys for all your replies... I can see that this forum is filled of very experienced and nice people...
Gracias Ilan por todo espero poder realizar mi proyecto....

[Ilan Voyager]

Fjapa, de nada, fue puro placer.

Si necesitas ayuda no dudes en escribirme (me puedes enviar un recado privado). Si quieres adaptar un diseño para triplay a poliester, te puedo dar una mano sobre el metodo que se llama en Francia placoplastic. Es sencillo y relativamente facil mismo para un principiante. Los resultados son excelentes y con buenos "accesorios" en madera muchos van a creer que tu lancha esta en madera. Que importa que el casco sea en poliester si guardas toda la belleza de la madera en los asientos, pisos, y otros. Ahi te simplificastes el problema.

Dudo muchisimo que puedas construir una buena lancha en triplay/epoxico a un precio accesible, o sino vas a usar material inadaptado, caro para un pesimo resultado. Aqui en Cancun, siendo a solamente a 800 km de Miami, se vuelve imposible por el precio del transporte y las aduanas. Imaginate en America del sur y sin los acuerdos aduaneros preferenciales del NAFTA.

[rasorinc]

UPS delivers to Equador. Have you checked the price on line?