Poly for sale on net

You have no Home Depot, Lowe's, Rockler, or Woodcraft stores near you? I'm not sure they wanna ship that.

 

The word Urethane identifies one kind of resin used to make varnish. Urethane varnishes are available in oil-based and water-borne formulations. WB urethane varnishes are clear, while OB urethane varnishes have an amber color.

What are the specific finishing characteristics you're looking for? Why is it important to you for your varnish to contain urethane resin instead of another kind of resin (e.g., alkyd, phenolic, acrylic, etc.)?

 

http://www.stewmac.com

 

This is an excellent water-borne urethane varnish:
http://www.rockler.com/product.cfm?page=27068&site=ROCKLER

This is a fast-drying oil-based urethane varnish:
http://www.rockler.com/product.cfm?page=27068&site=ROCKLER

This is a highly durable short-oil urethane varnish:
http://www.rockler.com/product.cfm?page=31683&site=ROCKLER&filter=rock hard tabletop varnish

This is a low viscosity urethane wiping varnish (multiple coats required):
http://www.rockler.com/product.cfm?page=10928&site=ROCKLER

This is a high viscosity gel urethane wiping varnish:
http://www.rockler.com/product.cfm?page=11243&site=ROCKLER

 

The sort of clear/trans polyurethane used on guitar and bass bodies is a two- and sometimes three-part catalyzed pro finish that is extremely toxic to breathe and tricky to mix and use successfully.

If you really want to mess with this stuff (and I suggest you don't) go to an automotive paint store.

 

Take it easy, buddy. I can see that post you deleted.
Anyway, you might get a better response in Luthier's Corner.
So, moved.

 

Are you looking for rattle cans or do you have spray equipment?

 

I use the stuff you are talking about on every guitar I use. Its not as toxic as you are making it out to be. I have sprayed tons of the the stuff with no effects on my health. Just be smart and use a mask when you spray it. A $0.30 mixing cup makes it easy to mix correctly also.

Spraying the stuff takes practice though. It takes experience to learn how to put enough finish on the body so it doesn't orange peel, but not so much that it runs.