Painter's tape—the blue type—is different than conventional masking tape.
How To Wash Interior Walls Before Painting. Cooking causes grease to become airborne and settle on walls and even the ceiling. Why should we clean the walls before painting?
How to Clean Walls - Preparing Walls for Painting from thediydreamer.com
Washing walls prior to applying paint is extremely important. Avoid colored soaps or dyed sponges, which can cause stains. Learn how to wash walls without using harsh chemicals.
Before priming any wall that already has a coat of existing paint on it, it's important to properly wash the surface.
Think way back to a time when walls were plastered instead of painted. Washing your walls is an important step in the painting process. When painting a bathroom or kitchen, wash the walls with a solution of approximately three teaspoons of laundry detergent to one gallon of water. Learn how to properly wash interior walls for a professional interior paint job.