Sanding Concrete Wall Before Painting

Sanding walls before painting for the best results use a good quality sandpaper i like 3m s pro grade advanced sandpaper available here and a sanding block this one is the best i ve found.

Sanding concrete wall before painting.

Move the grinder up and down and back and forth across the wall. Diamond head concrete. Smoothing walls before painting is necessary for surfaces previously painted with a gloss or high gloss paint. For previously painted water based paint sand with a fine grit sandpaper.

They aren t dry wall smooth but don t have an interesting pattern either instead i m left with a random scale like texture around the room with some areas worse than others. Don t put a lot of pressure on the sanding. Again wipe away any debris and allow to dry completely. After a few minutes the concrete will begin to have a slight luster.

Press the grinder to the wall and begin applying firm pressure. Dust from floor sanding will not damage newly painted walls. It is vital for the process to be done carefully. Sanding a concrete floor helps level its surface and is a common practice before painting it.

The annoying thing is they have a subtle texture to it. However there are some things to consider when painting a concrete wall. Scuff sanding is also the first step in preparing newly cured concrete for painting. Sand the walls from the baseboard to the ceiling with fine grit sanding paper on a sanding pole.

Easier to match the wall color to the floor than the opposite. Then sand horizontally along the baseboard and ceiling. You must choose the appropriate type of concrete paint determine if the wall is sealed from moisture and apply primer prior to painting the wall. Apply a second and final coat of paint to the concrete.

Painting a concrete wall can spruce up an area or make it blend in with the rest of the area s décor. Damage to walls from floor sander is easier to patch and paint over than the opposite. For oil based paint a medium grit sandpaper 100 to 150 grit should be used. Sand any areas where the paint failed to adhere.

My walls are solid 4 thick concrete slabs. Looking for feed back on these four options. You ll want a high shine for clear sealant and stain. Refinishing floors before painting walls pros.