Never had a lot of trouble with this type of paint. I just used some to touch up a old Bi-Slob. Not sure what the plane was painted with before. Might be dope not sure?

Any thing I can spray on it to make it cure?

Paul I had the same problem with Rust-o-leum on a Twister but there was no finish underneath it. I followed Alan Brickhaus' directions, and per Al Rabe I made sure the can was warm.  It went on beautifully, but came off in sheets when I removed the masking tape the trim.  My AMA number on the Ultracote stayed on and looked great, but the fuse was a trial in patience.   It has been 6 months and it is now very stable and looks good, but I've never flown it or put trim on it. Sorry I don't have an answer, but hope it helps that "I feel your pain!"

Steve Thornton

Yea I scanned it good info. The slob seems to get less tacky each day.
Maybe in another week it will be ready. 

I sprayed some over glued on fiberglass on a profile fuselage repair.  The glue-Rustoleum mix stayed tacky for over a month but did eventually cure.  You will most likely be fine if you can wait.