Perfection may not be possible when repairing a skim coat, but you can make the repaired area less noticeable by using ahandheld block sander with fine-grit sandpaperto smooth the plaster patch. Blend the old skim coating and the new as much as possible. Once the skim coat is dry, you can paint the plaster if desired.
People also ask
What is the best way to skim coat plaster?
鈥?Plaster layer contains high amounts of sand and mud which causes shrinkage. 鈥?Use Mowilex Alcaplast Skim Coat Grey AP 100 . 鈥?Avoid applying skim coat under direct sunlight; use a roof protector to protect areas that will be prepared. 鈥?Add Mowilex Alcabond bonding agent to increase adhesiveness.
Can You skim coat over joint compound?
Anyhow, back to skim coating. Even though your first pass may be somewhat to very bumpy, even after you’ve finished sanding, no worries, you’re still doing just fine. The goal of this coat of joint compound or plaster is to smooth those bumps out quite a bit with thinner coats of material.
What are the disadvantages of skim coat over plaster?
鈥?Poor adhesiveness of skim coat. 鈥?Plaster layer contains high amounts of sand and mud which causes shrinkage. 鈥?Use Mowilex Alcaplast Skim Coat Grey AP 100 .
What is skim coat?
The skim-coat approach, which involves the application of a single, eighth-inch-thick layer of plaster over the entire wall or ceiling surface, is a compromise, offering something of the charac …