Polyester or Epoxy Resin?
06 Apr 2010
I want to start making resin jewelry, but I was wondering if I should use Polyester resin of Epoxy resin. Also, ANY other information I can get would be lovely, cause I’ve never done it before!
Thanks
Whether you’d want to use a polyester resin or an epoxy resin would mainly involve exactly how you want to use it.
In general, polyester resins are use in (deep) molds, then are removed after curing (though there is one new line of "tweaked" epoxy resin called Easy Cast that can be cast in deep molds too, though it will come out a bit soft and/or flexible if heated (even with body heat).
Epoxy resins are generally used for pouring into shallow "cells" (like pendant trays, cabachon settings, polymer clay frames, etc) where they are left in place, or they’re used to pour over freestanding flat surfaces (like bar tops, or smaller things).
Polyester resins are less "safe" to lungs, etc., than epoxy resins.
Epoxy resins come in two parts mixed one to one, and polyester resins come in two parts mixed a lot of one to a few drops of the other.
You’d want a craft type polyester resin if you went with polyester, not the lines that are usually used for fiberglass, etc.
There’s loads of info, lessons, etc, on both kinds of resin (as well as a few variations on those), and also info about mixing, applying, coloring, brands, etc., on this page at my site if you want to check it out:
http://glassattic.com/polymer/other_materials.htm
I’ve also written about resins before (here and elsewhere), so you might want to check out these too for summaries:
http://www.craftster.org/forum/index.php?topic=275238.msg3112408#msg3112408
http://www.craftster.org/forum/index.php?topic=293667.msg3341730#msg3341730
http://www.craftster.org/forum/index.php?topic=254029.msg3522191#msg3522191
http://answers.yahoo.com/question/index;_ylt=AqrgkeBSA9O5mPYmuEFkMbrsy6IX;_ylv=3?qid=20090718165216AAJahSb
http://answers.yahoo.com/question/index;_ylt=AvmUkcJwjNazA4cK2Xywf2Dsy6IX;_ylv=3?qid=20080411123337AAqv0lf
HTH,
Diane B.
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