Dont try to paint bare smooth aluminum with it, it will peel off in 6 months. always use a good self etching primer first. Get plenty of rubber gloves. It flows really good even with a brush and brush marks disappear in a matter of minutes. After you open the can pour what you got left into a glass mason jar, put clear plastic wrap under the lid and then turn the jar upside down to store it. Put the cans lid back on the empty can and try to take it off the next day.