I contacted the Rust-oeum people about their crappy nozzles and got this reply:
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"Hi Paul,
Thank you for contacting Rust-Oleum Product Support.
We are sorry to hear of the problems that you are having with our Universal cans. Occasionally, pieces of pigment can settle down at the bottom of the spray can. Inside the can is a dip tube that pulls the paint from the bottom of the can to the tip. If the pigment in the paint is too big or if there’s not enough pressure behind it, it can get stuck in the tube or tip and the paint wont spray. If the clog is in the tip, wiping it with mineral spirits should clear it out; if the clog is the tube, there is unfortunately no way to clear it. Keeping the nozzle clean, by wiping off with a rag after each use should help keep it from clogging with dried paint.
If you can provide the product and batch codes from the underside of the can(s) we can look into this further. We would also be happy to issue a refund for the product. Attached is a photo identifying the product and batch codes from our can. Please note that these may vary slightly in placement / location on the can itself.
Sincerely,
Corinna
We have registered your complaint in our database. Please refer to the File Number in the Subject line of this e-mail for any future reference to this complaint. "
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I sent them the picture they requested along with one of the mess the nozzle created. So we will see. . . But I also ordered Krylon from Amazon to give it a try!