I bought 2 cans of flat black. Shook the first can thoroughly and continued as I was painting. 1/2 way through the can, powdery flat black spray went everywhere. Even though I continued to clean the nozzle throughout, I had to stop and try to wipe some paint off. I started on the second can and it sprayed and stuttered for about the first 1/4 of the can, then the nozzle stopped working!! Needless to say I had to sand the parts of my project that were ruined and repaint them. I don't know how long this paint has been around, but it's seems really old. Hard to imagine how 2 cans can be bad unless they were improperly stored. Not happy.