PVA Primer vs Drywall Primer: What’s the Difference?
Priming is one of the most important steps in achieving a high-quality and attractive paint job, but it’s often overlooked and undervalued. Whether you’re a DIY enthusiast painting up a bedroom in your home, an amateur painter embarking on a career journey, or a professional painter with decades under your belt, knowing your primers is one of the most important parts of your job.
Maybe you just finished sanding your fresh drywall and it’s ready for the first coat of primer. Or, perhaps you’re painting over an existing color in a room and you’re trying to decide what primer is best for your needs. Either way, you’re probably looking at PVA and drywall primer and wondering, what’s the difference? But by the end of this article, you’ll have your answer.
Overview of PVA Primer:
PVA primer is intended to seal up the pores in porous surfaces so that they’re ready to accept paint. When you use PVA primer, it turns the porous surface into a paintable one, allowing you to paint it with fewer coats, and resulting in a more even finish when the paint is dry.
What Does PVA Stand For?
PVA is an acronym that stands for Poly Vinyl Acetate. But what is poly vinyl acetate and how does it work in primer? This rubbery substance is a synthetic polymer seals over any tiny holes in the surface you apply it to, creating a solid surface for the paint to adhere to. It’s precisely this poly vinyl acetate that separates PVA primer from paint. It will adhere much better to porous surfaces that would simply absorb regular paint.
What is PVA Primer Good For?
PVA primer is the ideal compound to coat porous surfaces with before applying paint. It’s great for many types of unfinished materials, such as sheetrock, plaster, masonry, and more. However, it’s not a stain blocker. It won’t cover over stains or colorations in the base material. It’s also not effective as a wood sealer, so it’s not a great choice for use on raw wood.
Overview of Drywall Primer:
Drywall primer seems pretty self-explanatory. It’s a primer meant for drywall. But is that the full story? Let’s take a closer look.
What is Drywall Primer?
Drywall primer fulfills the same purpose that all primers do; it covers a surface that’s going to be painted, reducing the number of topcoats necessary to achieve a uniform look. Drywall primer is specifically meant for use on drywall, which is a porous material that’s covered in tiny holes. This primer has a special polymer in it that helps to fill and seal those holes, helping to prepare the drywall for paint. Without this coat of drywall primer, the paint would just be absorbed by the fresh drywall, requiring many additional coats to achieve a decent finished product.
Why Use Drywall Primer?
The main reason to use drywall primer is that it will seal up the holes in fresh drywall much faster than paint. This will save you time by reducing the number of coats you must apply, and it will save you money by enabling you to get the wall painted with less material.
Can Drywall Primer be Used on Other Surfaces?
Drywall primer is meant for drywall, right? It’s in the name, after all. But if you look closer, most drywall primers are actually made for use with several other materials, including brick, masonry, plaster, stucco, and sometimes even wood. That said, it can’t block stains, and often doesn’t have the ability to seal larger pores like what you find in raw woods.
PVA Primer vs Drywall Primer: Is There a Difference?
If you look carefully, you might notice that the pros and cons list for drywall primer and PVA primer are quite similar. Look a bit closer still and you’re likely to realize that drywall primers are all PVA primers because they are, in fact, the same thing. Drywall primers are a PVA primer that’s marketed specifically for drywall, though they’re able to be used on any type of surface that PVA is a good fit for. This means that neither choice is better; they’re exactly the same.
Sometimes, it’s easy to get caught up in different terms and marketing ploys. There are so many products on the market that it’s not uncommon to get confused about what’s what. In this case, PVA primer and drywall primer are the same product, intended for the same use. So, get whichever one offers you a better deal. Most products will list directly on the can or bucket that they’re both!
Featured Image Credit: CC0 Public Domain, pxhere