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Understand PVA Primer and Surface Preparation

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Painting New Construction Interior Walls - PVA Primer

What happens here

The presenter begins by emphasizing the crucial preparation steps before priming new drywall. This includes thorough cleaning of the walls by mopping and vacuuming to remove all drywall dust, caulking any gaps around windows, and masking off areas not intended for priming. He then introduces the type of primer to be used: PVA (Polyvinyl Acetate) Drywall Primer & Sealer, specifically from Sherwin-Williams. He explains that PVA primer is uniquely formulated for bare drywall and drywall mud. Its purpose is to seal these porous surfaces, preventing paint adhesion problems, commonly known as 'flashing,' and ensuring that the topcoat paint applies evenly and consistently across the entire wall or ceiling, regardless of the texture (e.g., Sun Valley texture or skip trowel).

Goal: Learn about the correct primer and necessary preparation for new drywall.

Tools and materials

  • Caulking GunApplying caulk to seal gaps
  • MopCleaning walls to remove dust and debris
  • VacuumRemoving fine drywall dust from surfaces
  • CaulkSealing gaps around windows and trim
  • Masking TapeProtecting adjacent surfaces not being primed
  • Plastic Sheeting/Film 3MMasking off windows and other large areas

What they say

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All right. So, we're out here getting ready to uh do our priming and we're doing the prepping, mopping the walls, vacuuming, cocking windows, and masking off. I'm going to talk a little bit about uh the primer we're going to be using. It's a PVA primer. If you've never heard of term polyinyl acetate, and that's a primer specifically for drywall, bare drywall, or drywall mud. It's not a primer for anything else but drywall. If you don't use a PVA primer, some of the challenges you're going to run into, you know, is your paint sticking to the walls. You've got, you know, the sanding and stuff even after mopping. You've got drywall dust on your walls that'll cause adhesion problems if you just try to put a paint over the top of that and you don't prime it with a proper primer. You don't want to use other primers, you know, say above like a PVA primer like Zenzer 123 cover stain multi-urface primer, you know, stuff like that because it's just expensive primers and it's not designed to do what this stuff actually does. A PVA primer goes on and it seals your sheetrock and and what that does is it makes it so your top coat that eventually goes over the top of that will be even across your entire wall and you don't get flashing. You can see we got exposed drywall paper right here where the mud is um not covered those areas. This texture right here is called a sun valley texture here in my area. Some people might call it a skip tri. Some people might call it something else. If you're not f familiar with the term here in Idaho treasure valley it's called sun valley texture with a hand texture on the ceilings. Once again it's extremely important to seal this with the proper uh PVA primer. PVA. Once again, poly vinyl acetate. It's going to seal this bare drywall paper. It's going to seal the mud. It's going to seal everything. So, your top coat when you spray it on, it's going to look professional. It's going to look nice and it's going to look even. So, you want to use a PVA primer irregardless of what other what other types of textures you do have on there. You could run into orange peel textures. You could run into your level five finishes. There's a lot of different textures out there, but use the proper primer so your finish looks like a quality finish and like a professional did it. All right, I've

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