How To Paint Slate Fireplace Tiles . Scrub the surface with a buffing machine. I placed the stencil material firmly on the mat and taped the sides down for good measure.
Mix a squirt or two of dish soap into a bucket of warm water. Tape off areas you don’t want to accidentally paint. Should be able to get the slate in either 12 x 12, 16 x 16 or a versailles pattern.
I used valspar duramax exterior paint and primer.
Use a roller to apply paint evenly to the tile. Clean the tile and rinse any soap you used. No matter what type of stone tile you want to paint, it must be clean and free from dust and dirt first. Scrub the surface with a buffing machine.