Stop in for a cup of coffee

I've had terrible luck with Rustoleum's cans. Got two or three Rusty metal primers that are full but won't spray. :wtf:
They are usually fine when new. But after that its hit or miss if they will spray again. I even pull the tips off and blow through with air nozzle sometimes. I still think they may be the best for rust protection. But I much prefer Krylon for a nice finish. I have found them to consistently spray good.