Pva is a primer that is used on new sheetrock and joint compound, texture,topping mud.
Can Pva Primer Be Used On Painted Walls. I did not paint over the primer yet. I am told that pva should not have been used in prep of painting.
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Acrylic paints are usually made with 100% acrylic. Designed for use on new drywall. Some of the best drywall primers are contractors will paint those walls and ceilings using an airless sprayer and a flat paint.
These sheens provide a more cleanable surface, scrubbing off scuff marks, hand prints than flat ceiling paint can be used as an interior primer.
If left uncovered for an extended period of time, primer will tend to deteriorate and chalk i am preparing to paint a block wall that has old white paint on it,that is weathered a lot. A cheap primer might pass under a true flat paint, but the better paints aren't true flats. We use pva primer for drywall to equalize the surface so paper/joint compound dissimilarities don't show up as. The primer acts as an adhesive so the finish coat of paint will stick to the wall better.
