ORIGINAL: ChuckC
I've never seen any over the counter type hardware store polyurethanes that had Iso's in them.
Chuck:
I think you mean no free isocyanates, as in PPG hardeners......
All Polyurethanes(foam, varnish, single part paints, etc.) by chemical definition, are isocyanate polymers.......all of the spray and brush products must meet strict, free-isocyanate, off-gassing standards at varying temperature and pressure........ basically zero off-gassing permitted here in the U.S.......don't know about Euro products like Soloplast.....
Tom