Dishwashing soap is a light soap designed to loosen the bond between sticky meals and glass, porcelain or ceramic dishes without damaging your fingers. The qualities which make it successful for dishes also make it useful for cleaning walls, but it is not always strong enough to get the job done.
A Gentle Cleanser
Because it’s such a mild cleaner, dish soap is an excellent first line of assault for filthy walls. A mix of 1 oz of your favorite dish detergent per gallon of warm water eliminates general dirt from most surfaces in addition to smudges from walls with a gloss or semi-gloss finish. You can fortify your dish soap wall cleaner and allow it to be more successful by adding 1/2 cup of borax along with a teaspoon of ammonia.
What Dish Soap Won’t conduct
Blackening on walls may be caused by mould, which will be likely if the walls are exposed to moisture or humidity. Dish soap wo not destroy mould; you will need chlorine bleach to do this. Furthermore, dish soap is not as successful as vinegar for removing stains, and although vinegar may dull the paint, it may be the cleaner you need. Finally, if your kitchen walls are covered with grease, do not expect dish soap to remove it; you may require a super-strong detergent, such as trisodium phosphate.