Older walls are more likely to have accumulated some defects that need to be corrected before the actual painting process can begin.
Painting concrete rendered walls.
Apply the concrete paint in your chosen color using a brush or a.
Tape areas you don t want painted and lay drop sheets where required.
Make sure to apply 2 coats to achieve the highest durability.
Allow several hours of drying time between each coat.
Allow to dry for 24 hours.
The paint may be sprayed on rolled on or painted on with a brush.
The best type of concrete paint for exterior walls is also elastomeric while 100 percent acrylic paint is a second best option.
Cut in corners first then paint the remainder of the walls starting from the top.
Concrete walls rendered with cement will require two or three coats of sealer.
Similar in many ways to stucco concrete rendering also known as cement rendering refers to the application of a thin mixture of sand cement lime and water over the face of bricks concrete.
Repainting old damaged rendered walls.
Older rendered walls are more likely to be damaged which means more prep work is required.
The type of paint you select for interior concrete walls will depend upon the use of the room as well as its décor.
You may need multiple coats.
The paint should not be streaky or show brush strokes.
The major difference between painting newly rendered walls to painting old and damaged render walls is the condition and status of the walls that need to be painted.
Now you re ready to paint.
Paint should be applied in at least 3 thin layers.
If your walls are particularly sandy we suggest priming them.