Depending on the type of stone, you might need to use sandpaper or a wire brush to loosen dirt or any small, loose stone fragments.
While cleaning, check the masonry for cracks or other damage. You may have to make repairs before painting. Don’t just paint over problematic areas. [4] X Research source You don’t want to leave any soapy residue, so it’s usually a good idea to do a few rinses to make sure all soap is all washed off. If you are able to bring the stone outside, you might also consider using a power washer that is intended for cleaning. Ideally, you should wait around 24 hours for the water to dry, especially if the stone is porous before you attempt to prime it; otherwise you’ll risk trapping water within the stone, which can cause mold and mildew to grow.
Choose a primer specifically made for the stone that you have to be sure your paint sticks properly. [7] X Research source In some cases, it might be necessary to apply a couple of layers of primer.
If you’re painting indoors, be sure to protect your floors and furniture from drips by putting down dropcloths. [10] X Research source
Lime, mineral and high-end acrylic paints are good choices because they are breathable and let moisture out. [13] X Research source
Use a ladder or scaffolding to reach high places so that every surface is covered. Wear old clothes and a dust mask to protect you from fumes while you paint.
Properly cured paint is very hard and unlikely to chip.
A second coat of paint deepens the color of your home so that it stands out.
Wrap an old rag around the blade of a putty knife to make a scraping tool that won’t scratch surfaces like granite countertops. [18] X Research source
