Latex primer can be used but alkyd primers are recommended for best results on plaster. Use trisodium phosphate (TSP) to clean heavily soiled walls. Use a paint pole to extend the reach of the roller.Click to see full answer. People also ask, do you need to prime old plaster before painting?When it comes to paint old plaster walls, you first need to fix all damaged areas of the walls by using a high quality patching compound recommended for use especially on plaster walls. It is also important to use oil-based or any high quality primer to prevent all kinds of moisture on the surface.Furthermore, can you use drywall primer on plaster? Plaster walls are harder than the modern drywall, but it is great to save them, and that will probably cost you less in the end. Often plaster walls have a lot of lime so mold cannot grow in them. For plaster in good shape, prime any bare plaster (or drywall), with basic drywall primer. In this way, what is the best paint for plaster walls? A flat or matte finish paint will help conceal any surface flaws on older plaster walls. An eggshell or semi-gloss paint will provide a washable surface for newer plaster that also resists abrasion and scuffing. In most cases, you can apply a second coat of paint two hours after applying the base coat.How do you prepare plaster for painting? Let the plaster dry. The very first thing you need to do when painting new plaster is to let it dry. Mix a mist coat. A mist coat is made of watered-down emulsion paint and acts as a primer. Apply the mist coat and let it dry. There are two different ways you can apply the mist coat. Apply the topcoat.
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