Instead of turning my cans of spray finish and paint upside down and spraying the gas to clear the nozzle, I pull off the nozzles and drop them into a jar of mineral spirits and give it a few shakes. I leave the nozzles submerged in the solvent until I need them again. Then, I pour the spirits off into a second jar for re-use and drop the nozzles onto the lid to keep my fingers dry. My method saves the propellant, and the nozzles are ready to go whenever I need them again. I’ve been using several of my spray cans for years and never had a clog this way.
– Dennis Weber