Gary A in KC wrote:
Isocyanate appears to be the catalyst behind oil based polyurethane cross
linking and curing.
"All polyurethane coating systems are produced by the
isocyanate-polyaddition process in which isocyanates and suitable
co-reactants are combined to produce polymers containing urethane groups."
Source:
http://www.pcimag.com/CDA/ArticleInf...,71242,00.html
If you do a google on Isocyanate you'll find a ton of information on this.
While I don't have any personal experience or problems from having sprayed
poly (which I haven't done a lot of - I'm just an amateur woodworker), there
appears to be a pretty good amount of stuff out on the internet indicating
many people have a lot of serious reactions on exposure to isocyanate.
I for one, don't need to find this out personally! I've gone water based
just because I'm spraying in my basement shop and fumes are always a killer
in the house, but this kind of clinches it for me.
My 2 cents
Gary in KC
"David" wrote in message
...
I can't find anything to indicate that polyurethanes contain ISOCYANATE.
Please provide ONE reference.
Dave
If that article was true, how come I can't find any mention of
isocyanates in the MSDS of a popular poly?
Dave