The Benefits of Priming Drywall Before Painting
After installing drywall, it may need to be painted to give it a nice looking finish. Before you apply fresh paint on the drywall, you will need to seal it with a primer. Painting over drywall without applying a primer is unlikely to give you a good finish. You either need to apply a primer or use self-priming wall paint which can be found at the local store that sells building materials Toronto.
What is drywall primer?
The primer that is applied over drywall prior to painting usually contains one ingredient by the name polyvinyl acetate (PVA). This ingredient is also present in carpenter’s glue and it works by sealing any porous surfaces allowing the area to be more receptive to fresh paint. Polyvinyl acetate is designed to adhere better to primer than to drywall. When choosing primers, be aware that there are different grades. The higher grades are designed to give a more smoother appearance after painting.
Primer allows you to apply fewer coats of paint
When you don’t apply primer on the surface before painting, you may end up with an uneven paint job and probably be forced to apply even a third coat of paint. This means that you will end up using up more paint, and since it is more expensive than primer, you’ll spend more on the project. To avoid this, make sure you always apply primer on the surface of the drywall before the first coat of paint. The first coat of paint, without a primer, is likely to soak into the porous joint compound and that is what gives the uneven finish. Primer helps to prevent this and make sure your wall looks great with just two coats of paint.
Using self-priming paint
There are paints that are designed to work just as effectively as primer and help you to avoid the extra cost of having to use three coats of paint in order to get an even coverage. These paints which can be found at the local store selling construction supplies Toronto are made using PVA, the same binding ingredient that is present in primers. Using tinted primer is actually recommended. In this case, you will only need to apply a single coat of paint in order to get even coverage.
Do you need a primer or self-priming paint?
When it comes to drywall, you need to determine whether your situation allows for a primer or self-priming paint. For instance, if you are painting a drywall that has been heavily damaged by water, it is recommended that you apply a primer instead of using the self-priming paint. Applying a primer will help to prevent bleed-through and make sure the color is evenly spread throughout the wall.
If you intend to hand wallpaper on the drywall, it’s best to apply a primer on the wall before. The primer is designed to seal the paper and joint compound making sure that the glue doesn’t begin to dry out. You may also opt for a primer in case the wall that is being repainted has a gloss coat. Look for the right building supply Toronto and know which situations it is best recommended.