Pour the joint compound into a paint tray then use a paint roller to roll it onto the wall.
How to smooth textured concrete walls.
Working from the top of the wall down to the bottom use a squeegee to lightly float the surface in one smooth even stroke.
Trowel a 3 8 inch layer of concrete over the wall with a straight trowel.
You can apply a new layer of concrete to a wall known as an overlay.
You can then add another texture or wallpaper or paint over it.
It refers to spreading a layer of joint compound over the walls to fill in the bumps and valleys in the texture effectively creating a smooth surface.
Go slow at first until you are more familiar with the motions of each stroke.
Step 1 dampen a sponge with warm water.
Texturing with joint compound or textured paint clean the walls and allow them to dry completely.
Use a special textured foam roller to apply mixed skim coat onto the wall.
Skim coating the process of covering rough walls with a thin layer of joint compound will smooth out the wall surface.
Scoop the right amount of joint compound about 2 thick and wide onto the taping knife and apply it to the textured wall.
There are several kinds of concrete overlays and ways to decorate overlays but one that may interest you in particular is a.
You will need to prime the walls ahead of time so that the texture has a smooth dirt free surface to stick to.
The biggest secret for a smooth skim coat is to keep the taping knife at about 10 degree angle to the wall and don t use too much pressure.
Drag the flat of the trowel straight across the surface of the concrete to smooth it.
The next stroke works from the bottom of the wall to the top again applying a smooth even stroke.
The process of smoothing textured walls with skim coating is fairly common.