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Mr Smith

Posted by Joseph Smith, on
What preparation do I need to do before painting an external sandstone wall must I apply an adhesive or sealant. What do I need to do to waterproof a sandstone exterior wall.
Fred Taylor

Fred Taylor

Clean the sandstone of any dirt and debris. Use a cloth instead of sandpaper to remove any loose particles; sandpaper could damage the delicate stone surface. Apply a coat of neutral-colored primer and allow it to dry according to the package instructions. Use a paint spray gun to apply the paint; this will ensure an even application if moved gradually across the wall and, more importantly, it will reach all the indents and spaces in the stone wall. Apply a coat of latex paint to the primed wall. Use a paint spray gun to apply the paint; this will ensure an even application if moved gradually across the wall and, more importantly, it will reach all the indents and spaces in the stone wall. Allow the paint to dry according to the package instructions. Spray a clear-coat sealant on the wall for added protection against marks, scratches or the elements.

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