StoneTech Bulletproof Sealer Use on natural stone such as marble, granite, limestone, slate, and travertine. Features Maximum penetrating microbond protection Heavy-duty protection against most stains It makes cleaning stones easier Preserves natural look Water-based formula Interior and exterior Directions for Use Allow new grout installations to cure for a minimum of 72 hours before application Make sure the surface is clean and free of waxes and coatings Sealer may be applied to damp surfaces 1 hour after standing water is removed Surface temperature should be between 50°F and 80°F Ensure that the area is well-ventilated during application and until the surface is dry Mask any surfaces not intended to be treated Apply sealer evenly and liberally using a paint pad, roller, brush or low-pressure sprayer Allow sealer to penetrate the surface for 15–30 minutes During this time, keep the surface wet with sealer, adding more sealer as needed DO NOT ALLOW SEALER TO DRY ON THE SURFACE COMPLETELY Remove excess sealer by wiping the surface thoroughly with clean, dry towels Should a sealer residue appear, rewet the impacted section of the surface with sealer Agitate the surface with a white nylon scrubbing pad to loosen residue and wipe dry with a clean, absorbent towel A complete cure is achieved after 24–72 hours Foot traffic may begin in 6–8 hours. If needed sooner, cover the floor with red rosin paper to protect it until full cure is achieved Clean tools used during application with water Available Sizes and Coverage Pint: up to 112 sq ft Quart: up to 225 sq ft Gallon: up to 900 sq ft for a single coat application Expected Wear: up to 5 years on interior surfaces and up to 3 years on exterior surfaces