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WATER-SHIELD™

Concrete Block Water Repellent

Apply WATER-SHIELD™ for post-construction application to give building envelopes additional moisture protection, including mortar joints. It provides a long-term beading effect over the masonry surface, keeping moisture out of even the smallest pinholes.

Available in 5 gal. pails, with EZ-Pour spout.

Resources

Technical Resources

Apply WATER-SHIELD™ for post-construction application to give building envelopes additional moisture protection, including mortar joints.

It provides a long-term beading effect over the masonry surface, keeping moisture out of even the smallest pinholes.

WATER-SHIELD BENEFITS:

  • Zero VOC
  • Silane siloxane
  • Invisible– not shiny
  • 7-year water repellency
  • Blocks pores in block, avoiding water penetration from exterior, while allowing interior air and vapor transfer
  • Recommendation: spray over mortar joints to provide full masonry protection

WATER-SHIELD APPLICATION:

1. Substrate must be dry and clean of oil and dirt.
2. Apply WATER-SHIELD using a sprayer.
3. Let stand for a minimum of 20 minutes.

 

 

Frequently Asked Questions

Have questions about WATER-SHIELD™? Get answers here.

How long does WATER-SHIELD™ water repellency last?

WATER-SHIELD™ water repellency can last for seven years. This lasting protection from moisture can help your building envelope hold its aesthetic appeal for a long period. It’s a durable solution that can safeguard your masonry from the elements for years to come. 

Can WATER-SHIELD™ be applied over existing sealers?

You should apply WATER-SHIELD™ to dry, clean masonry substrate free of oil and dirt without existing sealers for the best performance. We recommend preparing the surface as best as possible for maximum effectiveness and durability. Also, always do a test application first to make sure the product is compatible with your specific project.

Does WATER-SHIELD™ work on interior masonry surfaces? 

WATER-SHIELD™ works on vertical, interior or exterior, above-grade masonry surfaces and building envelopes. It is specifically formulated to prevent water penetration from the outside, keeping moisture out of even the smallest pinholes. It allows for interior air and vapor transfer while protecting treated masonry from exterior moisture.

What’s the application coverage rate for WATER-SHIELD™?

The application coverage rate for WATER-SHIELD™ is 1–1.3 fl. oz./sq. ft. Before a full application, test a small area to determine your coverage needs and confirm water beads on contact after treatment. This helps ensure proper performance for your specific masonry surface and conditions. To help you plan your project and ensure the best performance for your specific masonry, we recommend consulting our technical resources for the exact specifications you require.

Does WATER-SHIELD™ leave a visible finish on masonry? 

WATER-SHIELD™ does not leave a visible finish on masonry. It is expertly formulated to be clear and non-shiny upon application, keeping your masonry’s natural appearance unaltered. It provides excellent moisture protection for your building envelopes without affecting your project’s desired aesthetic.

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