Most homes have walls that are painted with latex wall paint. Knowing how to clean latex painted walls properly is critical to prevent damaging the paint. The best approach to clean any painted wall is to start with the least aggressive method, plain water on a soft cellulose sponge. If this does not do the job, use a mild, non-abrasive, very weak solution of dish detergent and water. Dilute the mixture to avoid harming the paint film.

Most standard glass and household spray cleaners should not be used on painted surfaces because they contain strong solvents that can damage the paint finish.

Don’t get in a hurry to clean a newly painted wall. Wait at least a month after you apply any latex coating before washing it. This will allow it time to fully cure. Low VOC paints generally require 30 days to cure.

When cleaning deep color paints there will be some color rub-off, especially with flat or low sheen finishes. This doesn't mean your paint is inferior or defective. Once the surface is dry, the paint will appear uniform.

Any painted wall will be somewhat affected by washing it if it is not properly cured or it is cleaned with abrasive cleaner or strong solvents.

Tips for how to clean latex painted walls:

When washing a painted wall always wear rubber gloves to protect your hands.
Use separate buckets for the washing solution and the clean water for rinsing.
Use separate sponges or cleaning rags for each bucket.
Start by spot cleaning painted surfaces with plain water. If this is not successful, use a weak mixture of water and mild, non-abrasive, dish detergent.
Begin washing at the bottom of the wall, working upwards toward the ceiling so the cleaning solution doesn't run down the dirty wall and cause streaks that are difficult to remove.
Clean by rubbing in a circular motion to avoid damaging the paint.
Dry off excess moisture with a soft cloth.
If the walls are excessively dirty, use a stronger alkali solution, such as two tablespoons of ammonia or two tablespoons of laundry detergent powder in one gallon of warm water.

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How to Paint Aluminum Siding

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