I sprayed a maple neck with 3 coats of polyurethane (Deft "Defthane" gloss). Each coat got 24 hours to dry and a scuff sand before the next coat. I've been spraying coats of nitro over the poly, and I'm smelling poly through the nitro after drying overnight. It was my understanding that the poly should be totally dry already. Why the strong poly smell? Any experience with this? Edit: The poly didn't smell after it dried. It's only after spraying the nitro that I can smell the poly again. It doesn't smell like nitro. It's definitely the poly smell.