How To Paint Slate Fireplace Tiles. I didn’t have to paint the entire tile because the slate made a great background color for the stencil. Seal the paint onto the tiles with a urethane sealer.
After cleaning the tile i gave it a final ‘rinse’ and wiped it down with a slightly wet cloth (with just water, no soap) and let it air dry. Let the paint dry for 24 to 48 hours until it is completely dry. I used valspar duramax exterior paint and primer.
Slate is available in a variety of colors so also is painting a slate fireplace hearth possible which can be painted to match virtually any home decor.
Finally, i’m done stenciling tiles. I would use tricorn black from sherwin williams in matte or some readers have shared the chalk paint has even held up well; Spray the entire slate by shaking the spray can for a minute or two, then holding it 12 inches or so from the slate. Should be able to get the slate in either 12 x 12, 16 x 16 or a versailles pattern.