can you sand drywall with an electric sander

        Before priming, my husband wiped the freshly applied drywall with a damp cloth to remove sanding dust. This caused the seam to become somewhat wavy, ruining a near-perfect finish. How to prepare the walls for the primer? Should I wipe the dust with a dry cloth?
        Myron R. Ferguson: I’ve been in the drywall industry for over 30 years and have never dusted drywall before priming. This is not necessary and, as you have found, dust can damage the finish. I vacuum the electrical box, around uneven openings, and on the floor to remove dust, but the best bet for removing light dust or anything that creates a slightly rough surface is to prime and then lightly sand with a wall sander (220 grit or more). shallow). sandpaper). The primer protects the wall from over sanding and creates a smooth surface ready for topcoating.
        Carol, if you see your contractor with a grinder, fire him immediately. Real drywall sanding is done with an orbital electric drywall sander with a vacuum connection. Something that can be wet sanded will improve the quality of the finish and help smooth out scratches and wavy joints. Before priming, the entire surface must be vacuumed. The initiation is absolute. The primer used is called PVA. Most contractors don’t use it because they are lazy and stupid. I prefer to apply two coats of primer and use at least half a roller. Even cheap paint can look good on a properly prepared wall.
        Mudjunky1 – Really? fire them? The first question is: what is the scope of training? Your comments on prep work can be included in the drywall preparation section. If a contractor or drywall finisher offers a tertiary finish and a coat of primer, what’s the problem? This is partly due to the development of a written scope of work to be completed. If the client does not want to pay for additional activities: “Will you (Mudjunky1) provide additional labor and materials for free? The key points are a good scope of work, knowing the right way to get the job done (that means sharing best practices), and find a contractor who is willing to do quality work at a reasonable price. Yes, the above costs are slightly higher. One question Mudjunky1 – if the walls are demolished or orange peel – so what?
        yes, Jeff I would love to hear a conversation where you say to a client, “Can I do a surface treatment where you can see x number of each connection and connection at each point, and for another amount you will not see anything?” The client doesn’t know how flat something is. They look forward to what they see on TV and what they see in their minds. Yes, I’m sure your “artist” used 3/8 pile and a coat of primer and finished? That’s what hackers do. Charge accordingly and get to work.
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Post time: Sep-07-2023