LastiSeal&reg; Brick & Masonry Sealer (5-gal) | All Purpose Sealer for Brick, Concrete, Stone, & Porous Masonry | 15-Year Waterproofing Warranty Unsurpassed Protection and Service Life  15-Year Waterproofing Warranty Waterborne, Safe, Eco-Friendly, Non-toxic, Non-flammable Easy Application Spray, Roll, or Brush Protects outdoor/indoor brick, concrete, masonry, grout, and even wood! Bonds and strengthens, protects against freeze-thaw, prevents spalling, dusting