prep and set up

[alloutpainting]

the most importaant part of the painting projest is of course, the prep the better the surface prep the better the finish will be, you want to make sure you patch all holes cracks voids and seams, with either, spackle, compound, or putty( which is typically used on trim only,) once you have patched all those area you need to let it dry, and then sand to a smooth finish, after you must apply a primer on all you repaired areas,
doing so will prevent flashing, which is when your patches bleed thru because they havent been primerd, always apply a primer it will hide all your patch work before you paint