How do I repair a wall before painting?
Paint can transform the look and feel of a room, but it can’t hide imperfections on your walls. Repairing these imperfections is key to ensuring an exceptional paint finish that will look good for years to come. Even if you are new to the process, you can follow these steps to ensure your walls are ready for some great color.
Remove any loose material with a scraper or filling knife. If you’re repairing a crack, use a knife to cut an inverted V shape groove along the length of the crack.
Small holes and hairline cracks can easily be filled using caulk. Flexible caulk is best for filling in cracks in areas subject to movement such as around windows and door frames, and between skirting boards and walls. You can apply caulk using either a mastic gun or a filling knife. Regardless of the technique you choose, be sure to smooth out the caulk with a wet finger or sponge before it dries. When filling larger cracks and holes, build up the caulk in layers, and be sure to allow sufficient drying time between applications.
Repair procedures for large holes and cracks differ depending on the size of the hole or crack, and the construction material of your walls. Repairing holes and cracks in lath and plaster usually involves packing the area with steel wool or newspaper before filling. Alternatively, you can use repair mesh to cover imperfections in drywall.
Once the surface is completely dry, smooth it out with fine grade sandpaper. Be sure to wear a mask when sanding to protect against dust inhalation.
After your repairs, and before applying your topcoat, be sure to prime the entire surface. Primer covers the filler and provides a surface on which the top coat will adhere. It can also be used to cover hairline cracks, stains, patches and other minor imperfections on your walls. When applying primer, paint your walls in all directions to achieve even coverage. When the primer is totally dry, apply the topcoat. You are now ready to have your place painted in the stylish color of your choice!
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