Complete Wall Prep
No amount of paint, no matter how high its quality, will cover flaws in the wall beneath or adhere well to dirty walls. Thus, proper preparation, whether for a single coat of paint or decorative paint finish, is the most important step of any painting project.
COVER AREA WITH DROP CLOTHS
Move furniture away from walls and protect floor and baseboards with 12-inch baseboard masking and a paper/poly drop cloth. Set popped nails or screws, repair cracks and holes, and fill dents with lightweight crack filler.
REMOVE STAINS AND MILDEW
Treat any areas of mildew with a 3-to-1 water/bleach solution. If you are sensitive to bleach, protect your hands and eyes. Let the crack filler dry according to the manufacturer's instructions, then sand the wall using a sanding block with 220-grit sandpaper.
CLEAN THE WALLS
Clean with a TSP solution if the surfaces are greasy. Otherwise, use a TSP substitute, which does not need rinsing. Let the wall dry overnight. Spot-prime all of the repaired areas with a latex stain-blocking primer. If stains are still bleeding through, use an oil-based primer.
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Skill Level: Beginner
Time: 2 hours
Due to differing conditions, tools, and individual skills, The Home Depot® assumes no responsibility for any damages, injuries suffered, or losses incurred as a result of attempting to replicate any of the home improvement ideas portrayed in this website Before beginning any home improvement project, review it thoroughly to ensure you or your contractor can finish the project and if any doubts or questions remain, consult local experts or authorities. Because codes and regulations vary greatly, you always should check with authorities to ensure that your project complies with all applicable local codes and regulations. Always read and observe all of the safety precautions provided by any tool or equipment manufacturer, and follow all accepted safety procedures.