I have used Val spar for years, the last gallon I bought was full of lumps. I brought it back to Lowes, the Manager told me all Val spar paint has lumps in it, and they broke up as you use it. She has no idea what she is talking about, I have never had this problem. It always used to cover in one coat, not anymore, the paint is too high-priced for the quality that it is now.