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The cost vs. benefit of removing all the existing plaster is more usually the overriding factor. Normally, the plaster would only be removed around fixtures and fittings and, if the waterline tile is not being replaced, a band about 3-4 inches below the tile is removed. This allows the new plaster to transition to these areas without being troweled too thin. The existing plaster should be examined for hollow spots and any delaminated areas removed as well. In preparing the rest of the existing finish for recoating there are several alternatives. In each, the goal is to provide a rough surface for the new plaster to adhere to. Acid etching the plaster with muriatic acid will roughen the finish and using an acrylic boning agent in the new plaster is a common practice. Acid etching however presents the problem of disposing of the used acid. Sand blasting is another means, though it can be as expensive as the replastering itself. A growing trend is to pressure wash the existing plaster and apply a scratchcoat or precoat. Scratchcoat is a modified masonary product that bonds tenaciously with the existing finish and provides a rough finish for the new plaster.
What else can I help you with?
How do you get masonry nails out of plaster without removing the plaster?
Masonry nails have very small heads, and are notoriously difficult to remove from plaster, concrete, and wooden walls. The best way to remove them, without removing the plaster, is to cut the head off so that it is flat to the wall. Then, fill in the hole and repaint, if necessary.
Best adhesive to glue ceiling tiles to plaster ceiling?
Depends what you want to stick onto it. Not many glues stick effectively to plaster.
What is the best plaster for sculpture and where can I purchase it?
The best plaster for sculpture is typically considered to be hydrocal plaster, which is known for its strength and fine detail reproduction. You can purchase hydrocal plaster at art supply stores, online retailers, or specialty sculpture supply shops.
What are the best tools for creating plaster art?
The best tools for creating plaster art are plaster mix, mixing containers, mixing sticks, molds, sculpting tools, sandpaper, and paint for finishing touches.
How can plastering tools be best cleaned?
Some experts recommend keeping the tools in a bucket of water when not in use. The plaster will then stay wet and can be wiped off with a damp rag. Another expert tip is to use Windex with ammonia to remove dried plaster from the tools.
What are the best techniques for applying plaster to walls for a smooth and professional finish?
The best techniques for applying plaster to walls for a smooth and professional finish include preparing the surface properly by cleaning and priming it, applying the plaster in thin and even coats, using a trowel to spread the plaster smoothly, and sanding the dried plaster between coats for a flawless finish.
What is the best anchor to use for hanging heavy objects on plaster walls?
The best anchor to use for hanging heavy objects on plaster walls is a toggle bolt.
What are the best anchors to use for plaster walls?
The best anchors to use for plaster walls are toggle bolts, molly bolts, or expansion anchors. These anchors provide strong support and are suitable for hanging heavy objects on plaster walls.
Can you plaster the brown side of plaster board?
No, it is not recommended to plaster directly onto the brown side of plasterboard. The brown side is usually the paper facing, which is not a suitable surface for plaster application. It is best to apply plaster onto the white side of the plasterboard or use a suitable primer before plastering.
What is the best primer for plaster walls?
The best primer for plaster walls is a high-quality acrylic primer specifically designed for porous surfaces like plaster. This type of primer will provide good adhesion and coverage, ensuring a smooth and durable finish for your walls.
What is the Cost of a tub of plaster?
The cost of a tub of plaster can vary depending on the brand, quantity, and quality of the plaster. On average, a 25-pound tub of plaster can cost anywhere from $10 to $30. It is recommended to shop around and compare prices to get the best deal.
Why did old time plasterers get sick from plastering?
Asbestos used to be used in the plaster mix to help strengthen the plaster. So if you are ever renovating an old pool with plaster it is best to have it tested for Asbestos.
