Parcel Orders over $300 Ship Free.
Euclid-Aqua-Cure-VOX

Euclid Aqua-Cure VOX 5 Gallon Pail

Euclid-Chemstop-WB-Regular

Euclid Chemstop WB Regular 5 Gallon Pail

Euclid Chemstop WB HD 5 Gallon Pail

Euclid Chemstop WB HD is a heavy-duty, water-based silane/siloxane water repellent and chloride protector. Shields concrete and masonry from moisture intrusion and chloride ion penetration, extending the lifespan and maintaining the integrity of the structure.

  • Water-Based: Lower VOC emissions
  • Chloride Protection: Effective in guarding against chloride intrusion
  • Heavy-Duty: Protects both concrete and masonry surfaces.
$238.77

Euclid Chemstop WB HD 5 Gallon Pail

Euclid Chemstop WB HD is a water-based, ready-to-use silane/siloxane penetrating water repellent formulated for porous concrete and masonry surfaces. It penetrates the substrate to help repel water and salts while remaining breathable, non-staining, and non-yellowing. Chemstop WB HD is a strong fit for lightweight concrete, concrete block, mortar joints, brick, and natural stone where reduced water and chloride absorption can help extend service life.

Key Features

  • Water-based silane/siloxane penetrating water repellent.
  • Formulated for porous concrete and masonry surfaces.
  • Helps concrete and masonry repel water and salts.
  • Colorless, odorless, non-staining, and non-yellowing.
  • Breathable treatment that helps reduce moisture-related damage.
  • Helps reduce efflorescence and spalling.
  • Helps extend structure life by reducing water and chloride absorption.
  • Will not alter the texture or appearance of the treated surface.

Applications

  • Lightweight concrete.
  • Concrete block.
  • Brick.
  • Natural stone.
  • Mortar joints.
  • Precast structures.
  • Horizontal concrete and masonry surfaces.
  • Vertical interior or exterior concrete and masonry protection.

Technical Specifications

Property Value
Product Type Water-based silane/siloxane penetrating water repellent
Version Heavy Duty, formulated for porous surfaces
Packaging 5 gallon pail
Shelf Life 1 year in original, unopened package
Viscosity 50 cp
Depth of Penetration 3/8 inch, substrate dependent
Active Content by Weight 10%
Reduction in Water Leakage, Brick 100% per ASTM E514
Reduction in Water Leakage, Mortar Block Greater than 91% per ASTM E514
Reduction in Water Absorption 92.3% per SS-W-110C
Flash Point Greater than 200°F
Accelerated Weathering No change after 1500 hours per ASTM G154
Abrasion Resistance Excellent
Dirt Pick-Up None
VOC Content Less than 50 g/L
Coverage, First Coat 40 to 60 sq ft per gallon on porous surfaces
Coverage, Second Coat 60 to 100 sq ft per gallon on porous surfaces
Application Method Low-pressure airless spray preferred, brush or roller acceptable for smaller areas
Compliance Federal specification SS-W-110C; complies with U.S. EPA, OTC, LADCO, Maricopa County, CARB, and SCAQMD VOC regulations

FAQs

What is Euclid Chemstop WB HD used for?
It is used to protect porous concrete and masonry surfaces by helping them repel water and salts while remaining breathable.

What surfaces is the Heavy Duty version designed for?
Chemstop WB HD is designed for porous surfaces such as lightweight concrete, concrete block, mortar joints, brick, and natural stone.

Will Chemstop WB HD change the look of the substrate?
No. It dries clear, leaves no gloss, and is designed not to alter the texture or appearance of the treated surface.

How is Chemstop WB HD applied?
Low-pressure airless spray is the preferred method. On porous surfaces, two or more saturation coats may be required using a wet-on-wet technique.

How soon does water repellency develop?
Water repellency typically develops from 24 hours to 5 days after application.

What should be avoided during application?
Do not dilute the product, do not apply below 45°F or above 90°F, do not apply if rain is expected within 12 hours, and do not allow the product to puddle or build up on the surface.