>>95938849
Is it Agrax Earthshade? Lissen ta >>95938895. You have to shake them up into an emulsion, or this will happen. If yer bottle has sat too long, shaking might not even be enough. I was unable to salvage mine even after scraping the inside of the bottle with a wooden stirstick. I ended up buying a new one, which works fine.

... and yes, GW, don't try to tell me it's the same amount of paint in the bottle. I was around when the bottle was taller *and* larger.