Now my wall is in dark color. I want to change the color into light color. So which type of primer do I need to use for changing color?

I have a round spot of water stain on my ceiling. I have primed the spot to cover it up before I paint the entire ceiling. Do I have to prime the entire ceiling or am I okay just priming the one spot?

MY HOME WAS PAINTED WITH KILZ PRIMER. NOW, WHEN WE USE THE SHOWER, A PINKISH PRECIPITATION APPEARS ON THE WALLS AND CEILINGS. IS THIS COMMON? WHAT CAN WE DO ABOUT THIS? THANKS.

Need primer for an interior wall and found some old exterior paint primer from the existing owner of the home. Can I use that inside the home?

I don’t have enough primer to cover my area for the first coat. If I were to add some paint to the primer will it still work as a primer? I’m painting over orange paint.

I have 3 different brands of white exterior primer. Can I mix them together? I’m painting a shed.

Can I prime my trim (semi gloss) without scuffing and the top coat adhere?

I have a 5 gal. bucket of flat white paint, I also have a 5 gal. bucket of white primer stain blocker sealer. My question is; What is the ratio of paint to primer so I can mix it correctly and be able to use only one coat?