interesting. you would think that it would be formulated to dry properly at the mixture it comes out of the can. i'll keep that in mind.
Yes I thought it was strange too, but it's been my experience. If you are going to use it full strength, I would just try to keep the coats thin and give them plenty of drying time. Way far back in this post, was someone said that the problem with rustoleum is that it never completely hardens, and I think 69charger replied and said it hardens if applied thin as with mineral spirits.
I did one fairly thick coat that was thinned with Penetrol of "regal red" and it can still be scratched with a fingernail, though it is harder to scratch that successive coats of rustoleum thinned with mineral spirits where there was not enough drying time between coats. Rustoleum tech line said it was put on too thick, and the top dried and is not letting the solvent out from beneath.
