After the plastered concrete walls have dried you can paint them or apply wallpaper.
Plaster thickness on concrete wall.
20 mm thick.
Test patches are strongly recommended to ensure a good long lasting bond of plaster to masonry concrete substrates.
If you want a flat wall smooth the plaster out.
Leave it rough if you prefer a textured look.
The thickness of the undercoat used in conjunction with thistle bond it or other bonding agents should not exceed 11mm for walls and 8mm for soffits.
If you want to apply a single coat of plaster make sure it is no thicker than 10 to 15 mm.
12 mm thick cement plaster is done where the plain surface of brick masonry is plastered.
Remember the thickness of the top coat should be 5 to 10mm.
New concrete masonry walls should be properly aligned and free from any surface contamination such as mortar droppings or sand.
Step 5 care of your plastered walls.
15 mm cement plaster is required on the rough side of 9 and 4 5 wall.
When relying on a bonding agent gypsum plaster should be applied to no more than a maximum thickness of 1 2inch.
Open textured concrete masonry units laid with flush non tooled joints should be specified on walls intended to be plastered.
Recommended thickness of cement plaster recommended thickness of plastering for brick walls is 12 mm 15 mm or 20 mm.
The open texture promotes a good mechanical bond between the plaster and the masonry.