So ya already know I had a polyurethane application that refused to cure. It was on metal so, I baked it and solved it but, why didn't it cure?

I had made this batch to be fast drying using Japan Drier.
However, I had made the batch up a while ago and the skin was thick.
I think the driers in the Poly from the factory got happy with the Driers I added and all of them ended up in the skin VIA that old friend of the molecular biologist: Affinity Bonding. So the driers had all gotten palsy and left me with nuthin' to cure my poly.

Oh how the mighty have fallen.