StoneTech™ Heavy-Duty Exterior
Stone & Masonry Sealer

Water Water Repellent for natural stone, tile, pavers, limestone, clay, grout, concrete, brick, saltillo tile, terra cotta, sandstone and stucco

Heavy Duty Water Repellant

A superior water repellent and stain protector for exterior stone:

Heavy-Duty Exterior Stone & Masonry Sealer provides “natural look” protection for exterior natural stone & masonry. Formulated with advanced, water-based, silicone technology that protects against water-based stains. Lasts for years even under extreme sunlight.

  • Easy to Use.
  • Inhibits Efflorescence.
  • Preserves Natural Look.
  • Great for Building Facades.
  • Excellent Water Repellency.
  • Non Yellowing.

Directions for Using Heavy-Duty Exterior Stone & Masonry Sealer:

Always test in a small inconspicuous area with a 24-hour cure time to determine the ease of application and desired results. Allow new grout installations to cure for a minimum of 72 hours prior to application. Make sure surface is clean, dry, and free of waxes and coatings and loose debris.

  1. Mask off and protect any baseboards or adjacent areas to avoid splashing and overspray onto surfaces not intended to be treated.
  2. Liberally apply 1-2 coats with a brush, paint roller, or solvent resistant low pressure sprayer. On porous surfaces the first coat will soak in considerably. Additional coats will cover approximately double the previous coat.
  3. Highly porous material will need longer cure time between coats. Allow time to saturate, about 5-15 minutes per coat. Wipe off any excess residue prior to complete drying.
  4. If, after drying, a light haze appears, lightly dampen a clean towel with Heavy Duty Exterior Stone & Masonry Sealer and wipe surface to remove.
  5. Clean equipment with mineral spirits or Saf-T-Solv™.
  6. For maximum oil and water repellancy, allow Heavy Duty Exterior Stone & Masonry Sealer to cure for 24 hours, then apply two coats of StoneTech Professional Impregnator Pro™ as per label directions.
  7. Do not walk on surface for a least 4 hours. Full cure is achieved in 24-72 hours.

Coverage & Expected Wear of Heavy-Duty Exterior Stone & Masonry Sealer treated surfaces:
Depending on type of stone, porosity, texture of surface and method of application -
Coverage: Approximately 200 - 1,200 sq. ft. per gallon.
Expected Wear (with proper care):
5-10 years on exterior surfaces. For optimal results, reapplication is recommended every 3-5 years for exterior surfaces or 5-7 years for interior applications.

Routine Cleaning of Exterior Stone, Brick and Masonry:
To maintain the stone’s natural beauty, clean surface as needed with StoneTech Professional Revitalizer™.

Heavy Duty Cleaning of Exterior Stone, Brick and Masonry:
Pre-clean with StoneTech Professional Klenz All™ Heavy Duty Stone, Tile and Grout Cleaner.

Related Stone, Tile and Grout Cleaning and Sealing Products:

Additional Stone, Tile and Grout Cleaning and Sealing Information:

StoneTech™ Professional Products™ Material Safety Data Sheets

Heavy-Duty Exterior Stone & Masonry Sealer Order Form:

  Cat. No.: Item Size: Item Price: Desired Quantity:

61237 Heavy-Duty Exterior Stone & Masonry Sealer - Quart $29.95/quart
61237 Heavy-Duty Exterior Stone & Masonry Sealer - Case of 6 Quarts $167.70/case

Heavy-Duty Exterior Stone & Masonry Sealer is non-discountable. Price subject to change without notice.

To add Heavy-Duty Exterior Stone & Masonry Sealer to your current order, place the quantity you would like in the "Desired Quantity" box and click on the "Order Item" button.

Heavy-Duty Exterior Stone & Masonry Sealer is a solvent-based product - it cannot be shipped by next day air!

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