Hello, I want to colour-block my hallway, which concete walls, wood framings, metal radiators, and plastic piping.
I want a matt look, and I'm told that Zinsser mutisurface paint is the way to go. So my plan is just to get cracking and paint everything.
Is there anything else I need to know? I don't know how much I should believe Zinsser's marketing that I don't need to prime or sand beforehand.