Why prime drywall

Well, actually you need to prime drywall for various reasons. Who wants to waste time on extra coating coverage? Well, no one. Money too. Because they help topcoats dry faster. Otherwise, they will be absorbed by the material and will take much longer to dry. If the drywall is in a relatively good condition no need to hide blemishes with paints and you are not trying to paint white over black, one hand of coating will suffice.

Second is complete priming, which involves over large, bare areas or surfaces that may have dark colors or an uneven sheen. As a general rule, primer should be used on surfaces that have never been painted, have an uneven appearance or visible stains, as well as areas that have a dark-colored paint that will be covered with a light covered paint or have an unknown covering.

For interior walls, priming is also recommended in the case of wall repairs or remodeling, Regardless of surface type — drywall, plaster, woodwork, etc. When it comes to painting exteriors, primer is almost always needed, as these surfaces are constantly subjected to harsh conditions, such as moisture and UV rays.

This kind of exposure causes surface deterioration, which makes paint adhesion a challenge. In addition, primers are always recommended when painting surfaces such as wood, masonry and metal.

Besides providing good adhesion, primers are designed to deal specifically with common conditions such as efflorescence on masonry or tannin staining on cedar and redwoods. New Drywall — Opt for drywall primer because drywall is porous and must be sealed with a sealer or self-priming paint. Bare Wood — Use a wood primer, as wood contains tannin acids that can bleed through. Stains — Choose a stain-blocking primer for stains, because it prevents stains from appearing through the topcoat.

Drywalls are a godsend; interior construction that almost took a month could be finished in a few days with added advantages of excellent durability and moderate pricing. This means that you will want the drywall to be fully sealed, dry, and ready to go. Also, you should open the windows and add fans not only to ensure that the room is well ventilated but also to dry out any potential trouble spots.

If you see an area that is quite slow to dry, for example, you may want to investigate to see if the drywall is over the pipes. Painting without priming will often require more effort and primer quantity. Plus, the flat paint will not adhere well to a rough un-primed new wall which will make the job tougher, time-consuming, and more expensive.

You will need to start by cleaning and preparing the new drywall. This is not that difficult if the drywall is new because it should be in pristine condition.

You will need to ensure that any covering is removed so that the wall itself is exposed and ready to be primed and painted. Go over the drywall to ensure that any changes you need, such as adding holes for outlets, have been made. Once you have created the frame, you can then use a roller to apply the remaining primer to the wall. If the wall is too high to reach you should make use of a drywall stilt or a ladder for priming.

Once complete, step back to see if you have missed any spots. Cover such areas with a new application. If you notice color differences that may indicate the primer is still wet, it is best to err on the side of caution.

This means creating a frame of new paint along the edges with a brush, then filling in the rest with a roller. Once the first coat is dry, check to see if you need to add another coat of paint. If required apply one more coat of paint. Generally speaking, a single coat of primer and two coats of paint provides maximum protection for the wall while still conserving the amount of paint that you use.

By creating a new surface of primer or sealer, such differences in colors can be smoothed out considerably. This saves you time and money as fewer coats will be necessary. Don't listen to these guys that are flipping houses. They are out to make a quick buck. Do it right by priming the walls. Better yet, try your own experiment. You'll see Conor Boyd and I are correct. For what it's worth, the "paint plus primer" paints seem to vary in their ability to actually cover the drywall.

In other words: use a good primer and save yourself some extra money on your paint. Walker Walker 5, 20 20 gold badges 59 59 silver badges 84 84 bronze badges. Good Luck! Primer also has the advantage of drying faster so you can put your next coat on sooner. But I would argue it is a good idea to do it if you can. Daniel Griscom 6, 31 31 gold badges 28 28 silver badges 40 40 bronze badges.

Bill Shomers Bill Shomers 61 1 1 silver badge 1 1 bronze badge. If I could upvote more than once I would. Niall C. Spencer Gorman Spencer Gorman 1. Always use a good primer. FreeMan So many yes's and no's It is ultimately something I like to do, be it drywall or new wet plaster finished walls. Dibble Dibble 1 1 1 bronze badge. Yes, there have been so many yes's and no's, and it doesn't feel like your answer says much of anything that hasn't already been said, though adding "PVA" is that a reference to standard carpenter's glue?

Maybe edit your post to expand on that point in particular - i.