Anotherpower.com Forum

Renewable Energy Questions/Discussion => Renewable Energy Q&A => Topic started by: wdyasq on January 14, 2012, 11:12:31 pm

Title: A Bit about Resins
Post by: wdyasq on January 14, 2012, 11:12:31 pm
I was asked what products to use on a wind generator in the IRC channel. Since folks will be spending a good sum on magnets, wire, bearings, steel and wood, as well as a great deal of non-replaceable time, I feel one should use the proper products.

First of all, I think polyester resin is junk. It is so bad even low cost boats will not warranty the hulls if left in the water.

For potting magnets, Epoxy resin is the proper material. It actually bonds to things. It actually seals things damn near water proof.

For casting stators, many prefer vinyl ester resin. It has higher temperature tolerances than epoxy resin.

Be sure and use as much glass fiber as you can stuff into the stator if it doesn't interfere with the wire. Remember, the resin has little strength on its' won and relies on fillers such as glass, Kevlar and Carbon Fiber for strength. Be sure and keep temperatures in the proper range for the resins to harden.

Ron
Title: Re: A Bit about Resins
Post by: Watt on January 15, 2012, 02:47:59 pm
Thanks for the post Ron.   8)

Yes, it was me at Lowes asking questions on the IRC using my phone IRC app.  Very handy and awesome help.

Title: Re: A Bit about Resins
Post by: WooferHound on January 15, 2012, 07:14:37 pm
Hmmmm . . . I used polyester resin when I made my stator.
It does have the fiberglass reinforcement stuff in it.
[attachimg=1]
Title: Re: A Bit about Resins
Post by: philb on January 15, 2012, 09:47:44 pm
I'd add the smooth on 300 product from http://www.smooth-on.com/ (http://www.smooth-on.com/)
None of the xylene or acetone smells. Three minute working time.
Title: Re: A Bit about Resins
Post by: Jarrod9155 on January 17, 2012, 11:11:36 am
The best stuff I have found for stators is epoxy resin from westin products , expensive but what a nice pruduct and strong 10 x stronger than fiberglass .