So yes, Prime/seal bare drywall!
Well you don’t need to do anything — in fact you don’t need to put drywall up but you should prime drywall if you want a better finish on the wall.
It seals the paper and seams.
You often see a color variation or see the seams if you don’t seal the wall.
What happens if you don’t prime drywall before painting?
Proper Paint Adhesion
Because it has a glue-like base, drywall primer helps the paint adhere properly. If you skip priming, you risk peeling paint, especially in humid conditions. You might blame this on the quality of paint you used, but the truth is that failure to use primer caused the problem.
Is paint and primer in one good for new drywall?
The new paint and primer combinations are great for covering existing paint, but are not a good substitute for a PVA or shellac/alcohol based primer on new drywall or patches. When sealing new drywall, it is important to seal the pores so latex/water based paints are not absorbed.
How many coats of primer do I need for new drywall?
Using a good drywall primer may only require one coat, but two coats is ideal number here. Once the first coat has dried, take a good look at the surface to look for any flaws or thin spots. A second coat covers up these flaws, as well as replenishing any primer from the first coat that was absorbed.
How soon can you prime new drywall?
drywall mud dry time before painting. How long after the mudding is complete do you have to wait to primer the bare walls? Primer can says 30 days.