Paint not setting up.

It's been more than 24 hours ago that I shot some single stage gloss black on my dash board assembly. (removed) I'm not going to mention the brand of paint until I go by the paint store tomorrow. It is a high end, very expensive paint. 1/2 Pt. of urethane. 1/2 Pt. Hardener and a qt. of reducer cost right at 140.00. The mix ratio is 1 to 1. The mix only needed a pinch of reducer to get the spray viscosity just right. The data sheet for the paint shows an 8 hour pot life. Like I said, it's now well over 24 hours since I shot the paint and it has yet to be even be "tack free." The little bit that was left over hasn't even begun to gel. This is the first time I've used this particular product, but I've shot a lot of similar types of paint and I can't remember a urethane (mixed properly) doing this.
Norm