What Can You Put on a Natural Veneer Stone Fireplace to Bring Out Its Natural Luster?

Stone Veneer on Fireplaces

• Stone veneer is natural quarried stone that has been tumbled in a rock-filled machine for an aged look. The stones are cut to 1 and 1 1/2-inch thick and are used as architectural accents for building exteriors, patios, retaining walls, shower walls and fireplaces. Natural stone veneer is only one choice for fireplace veneer; others include brick and manufactured stone veneer, where concrete is shaped and dyed to resemble natural stone. Homeowners who choose natural stone veneer are generally interested in the durability, texture and natural colors of quarried stone.

Masonry Sealants

• Natural stone is porous, meaning it has thousands of tiny pockets on the surface that can absorb anything from water and oil to tomato sauce and paint. For fireplace areas, sealant protects natural stones from absorbing soot and smoke. Without sealant, natural stone veneer fireplaces will probably get discolored. Show off any authentic luster and keep natural stone clean and stain resistant by applying sealants, which penetrate and fill these holes. To apply the sealant effectively, the stones must be completely dry and clean.

Sealant Options

• Masonry sealant comes in all kinds of finishes, from high gloss and satin to matte. If you are looking to bring out the natural look of natural stones, choose a satin or matte finish, which will emphasize color and texture without making the stones look artificially shiny.
  Avoid any tint in the sealant; choose a clear variety. The sealant must be semi-permeable and designed specifically for masonry for the best results.

Applications

• Let the stone veneer fireplace cure for 30 to 40 days before applying a sealant. Set a drop cloth down to protect the flooring. Use a paintbrush to apply a thin coat of sealant over the stone and mortar. Wipe off any excess with a rag. Allow it to dry completely for about 24 hours. Give the stone veneer fireplace one more thin coat of sealant and allow it to dry for another 24 hours.