Eastwood Company Recommended for … This protects other areas of the wall from overspray. The most common method of priming drywall is to apply a coat of primer-sealer designed for drywall. Avoid polyester roller covers, which spatter and leave lint; lambswool or mohair covers are more reliable. Knowing how many coats of primer you should use on new drywall can be a little confusing, especially if you don’t even understand the importance of primer. If there are flaws, then I apply a thin coat of topper mud as a final coat. Step 1. Drywall primer-sealers come in both water-based (latex) forms, as well as oil-based (alkyd) forms. Posts: 4,832 Thanks: 1,904. Typically, back rolling after spraying on walls and ceilings is ideal especially for your primer. Once the drywall has gone up, the joints taped and the screws mudded, something is needed to create an even, solid surface over those different textures for a smooth coat of paint, and possibly to help blend in new drywall with an existing wall. Then a guy follows behind with an 18" blade and lays it down to a fast level five smooth finish. I am concerned about the appearance after first sprayed on primer. Spraying primer on your new dusty drywall may also require “back rolling” to create good adhesion. This difference in porosity can cause blotchy, dull areas under the paint (a problem called “flashing”) and an inconsistent sheen. This protects other areas of the wall from overspray. Normally, when dealing with fresh drywall, you still want to prime separately, as it not only primes, but seals the joint compound (I’ve tried using some formulas in the past that scared me off for a while… This is a big mistake that usually results in a … Prime drywall (texture adheres to primer much better than bare rock) Step 2. Sometimes you only need to prime a small portion of your drywall, especially if the drywall has been slightly damaged. How to texture a wall. Avoid polyester roller covers, which spatter and leave lint; lambswool or mohair covers are more reliable.Use a 1/4-inch nap for semi-gloss finishes on smooth drywall, a 3/8-inch nap for flat finishes, and a thicker -- up to 1-inch nap -- for textured surfaces. they see the seams in the drywall when it has two or three coats of paint,” noted Don Steadman, owner of All-Tech Decorating Co., Chicago Ridge, Ill. “With new drywall, it’s really hard to disguise that problem, especially when you’re using eggshell or semi-gloss finish coats, Normal PVA-type primers won’t hide it … Tape off the surface surrounding the areas and cover with plastic. The vinyl primer is truly a drywall primer and anything else thats applied thicker is a surfacer . New Look, Same Hardworking Formula! Good job. Ceiling Primer for New Drywall A bare drywall ceiling is very porous, and it has an uneven texture where the joint compound meets the wallboard. Sorry about posting a newbie question here but i usually hire out my painting on customer projects but i am going to try my own basement. However, they are formulated more as thick paint than as primers. The entire surface should be vacuumed prior to priming. Prime your drywall. Let dry. If you are making your own screen then the sprayer is your best friend. This is partly true but below are the pros and cons to spraying new drywall verses rolling. Log In Without primer, the surface appearance generally suffers. Bestoverallpick! Re: High Build Primer For Drywall New [quote=Da Vinci;273475]Some of the guys out here mix mud with water to thin it out, then roll it on heavy and wet one wall at a time. Tape off the surface surrounding the areas and cover with plastic. After repairing any holes or nicks in the surface, use a spray-on primer. These products work best on new drywall or previously painted surfaces and can provide decent coverage in one coat. 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