For other small imperfections on the wall such as plaster bumps smooth them away with sandpaper.
What to use to wash down walls before painting.
To rinse the walls mix a cup a vinegar with a gallon of warm water and wash the walls again.
Wash your walls from the bottom up using a nonabrasive sponge.
For surfaces that have exposure to oil or grime like kitchen walls wash with a solution of water and grease cutting detergent and follow up with clean water to remove any residual cleaning agent.
Once the walls dry sand the walls using a pole and disc sander as mentioned above.
Avoid using an excessive amount of water when cleaning painted walls.
Scrape any cracked or flaking paint with a paint scraper.
While there is no best way to clean walls before painting most walls can be washed using a sponge and warm water.
Then wipe them down with a cloth covered broom or mop spray with a dusting agent for best results or use an electrostatic dusting wipe.
Aim to wash an entire wall in one session using the same technique.
Cleaning a wall before painting it can be either a quick job or a major effort depending on the condition of the wall itself.
This will neutralize the washing soda and help kill the smoke smell and disinfect the walls.
For surfaces that have exposure to oil or grime like kitchen walls wash with a solution of water and grease cutting detergent and follow up with clean water to remove any residual cleaning agent.
Give newly painted walls at least two weeks to fully dry before their first wash.
Work in small areas washing and then using a soft clean towel to remove excess moisture.
Latex paint finishes can be cleaned with warm water mixed with a nonabrasive cleaner.
Cleaning the wall before applying a new coat of paint always means more than just a simple washing down with warm water if you really want to make sure the job is done right.
Pay particular attention to the middle of your walls as this is where you will find most marks and stains.
Wipe off the dust and you re ready to paint.
Finish by wiping the walls with a damp cloth.
Wipe away fingerprints and other marks soon after they appear.