I'm working on the Hasegawa Mig-25, and for the main sections of the fuselage it says to paint it 1+75, which means White & Dark Sea Gray. They give no ratio of white:dsg. Also, I'll be painting various parts of the plane that, not just the fuselage. How do I mix it correctly? I'll need to be able to store a working amount of that color in something, because I know if I mix it once and don't remember what the ratio was, I'll never get that exact color again.
It also calls for Silver + Burnt Iron
Flat Black + Neutral Gray