Common problems and solutions when painting a stony surface. Problems can arise before, during and after painting when painting, saucing, rolls of latex, smudge-proof or another (synthetic) wall paint on a stony surface (walls and ceilings). What are the possible solutions to the problems that can arise when painting a stony surface?
Painting a stony surface
Before painting walls and / or ceilings with a wall paint, cleaning, careful sanding, making dust-free and possibly repairing, leveling, fixing or priming the surface is of great importance, in order to prevent later problems with the adhesion of the paint and a to obtain good and professional results.
The starting point are the problems that may arise when finishing a stony substrate. This does not alter the fact that these problems and the solutions can also apply to other (wooden) surfaces in a number of cases.
Pretreatment of walls and ceilings
When to fix a wall or ceiling
You use fixer if the surface becomes too powdery or if it is still intact, wipe-resistant or whitewash. Fixate fixes the powdery surface, so that a good basis is obtained for the further construction of the paint system.
When a wall or ceiling for ironing
You use a primer if the surface absorbs too much. The primer removes the suction, so that a better coverage is obtained when the wall paint is applied.
When to insulate a wall or ceiling
You use an insulator if you suspect that ingredients penetrate through the wall paint from the contaminated surface. Think of: fat, soot, nicotine.
Defects in the ceiling or wall paint |
Phenomenon in the paint layer |
Possible solution |
---|---|---|
Hairline cracks | When wetting the surface, cracks turn dark | Use crack bridging or elastic wall finish |
Contamination of the substrate | Dirt adhesion due to age, use or environmental influences | Clean with a suitable cleaning agent. Manually or with high pressure sprayer |
Discoloration of the substrate | Usually visible yellow or brown discoloration | Ingredients from the substrate. Insulate wall before refinishing |
Moisture in the substrate | Moist spots, water marks and discoloration | Eliminate cause (leakage). Leave to dry, ventilate and heat if necessary |
Moss, algae, fungus | Visible green or black growth | Remove chemically, mechanically or with a high-pressure cleaner and treat with a fungicidal agent. Indoor fungal spores are usually caused by insufficient ventilation |
Determine suction power | Wet the substrate. With a non-absorbent surface, the water will run off | Treat overly absorbent surfaces with a primer / primer for walls |
Powdery surface | When rubbing, “powder” comes off the wall and / or peeling off when wet | If the substrate is intact, brush off powder and use a suitable fixing / primer. If the paint is peeling (smudge-proof), moisten the lime, scrape off and apply a fixer |
Repair areas | If repair spots remain visible, this is due to insufficient leveling and / or insufficient saturation by the wall paint. Non-adhesive repair spots sound hollow when knocked | Level and possibly stain with the wall paint. Repainting the entire wall is preferred. Remove and renew non-adhesive repair spots |
Old wall paint layers | The paint has a tendency to splinter and peel off easily | Remove old paint coat and build a new paint system |
More tips and advice for dyeing or painting?
In the table above you will find problems that can occur in the substrate or when processing paint or paint products; For the processing of the paint and the decoration of your home you can look at the special Paint. In this special you will find articles about painting the house, kitchen, walls and more!