Henry Aqua-Bloc WB Elastomeric Asphalt Emulsion Waterproofing Membrane, 5 Gal, Black - image 1

Henry Aqua-Bloc WB Elastomeric Asphalt Emulsion Waterproofing Membrane, 5 Gal, Black

Regular price $146.00

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Henry Aqua-Bloc WB Elastomeric Asphalt Emulsion Waterproofing Membrane, 5 Gal, Black


Henry Aqua-Bloc WB is a water-based, low-VOC elastomeric asphalt emulsion for below-grade waterproofing of foundation walls and other structures. This 5-gallon pail is the sell unit. Apply it to concrete, stone, wood, preserved wood, metal or polystyrene to form a seamless liquid-applied membrane.


Key Features:

  • Water-based formula: Water-based and low VOC for easier cleanup and reduced solvent odor on the jobsite.
  • Seamless membrane: Cures to a seamless, low-modulus elastomeric membrane that bridges irregular surfaces.
  • Strong adhesion: Adheres well to most construction surfaces including concrete, stone, wood, preserved wood, metal and polystyrene.
  • Below-grade use: Designed specifically for below-grade waterproofing of foundation walls and structures.
  • Code compliance: Complies with, and exceeds, the requirements of CAN/CGSB 37.2.
  • 5-gallon pail: Supplied in a 5-gallon pail for coverage on foundation wall projects.

Specifications Table:

Specification Details
Brand Henry
Sell unit 1 pail, 5 gal
Product line Henry Aqua-Bloc WB
Available colors Black
Available sizes 5 gal
Material Emulsified asphalt, elastomeric
Color / finish Black
Dimensions 5 gal pail
Intended use Below-grade waterproofing of foundation walls and other structures
Approvals Complies with and exceeds CAN/CGSB 37.2
Application surfaces Concrete, stone, wood, preserved wood, metal, polystyrene

Fit and Compatibility:

Part of the Henry Aqua-Bloc waterproofing line for below-grade foundation work. It bonds to concrete, masonry, wood, preserved wood, metal and polystyrene surfaces; primers, reinforcement fabric and application tools are sold separately.


Frequently Asked Questions (FAQ):

Q: What is included in one order?
A: One 5-gallon pail of Aqua-Bloc WB asphalt emulsion in black.


Q: Where is this product used?
A: It is a liquid-applied elastomeric membrane for below-grade waterproofing of foundation walls and other below-grade structures.


Q: What surfaces will it stick to?
A: It adheres well to most construction surfaces, including concrete, stone, wood, preserved wood, metal and polystyrene.


Q: Does it have strong solvent odor?
A: No. It is water-based and low VOC, making it suitable where solvent fumes are a concern.


Q: Is it compliant with standards?
A: The manufacturer states it complies with, and exceeds, CAN/CGSB 37.2 requirements.


Expert Verdict — Reviewed by the SuperArbor Pro Desk

Aqua-Bloc WB is the go-to choice when you need a cold-applied, low-VOC damp-proofing and waterproofing coat on foundation walls before backfill. Apply to clean, prepared surfaces in the mil thickness your project specification calls for, and let each coat cure before backfilling. For heavily cracked or moving substrates, pair it with appropriate reinforcement rather than relying on a single flood coat.

Follow the product data sheet for required protective equipment and ventilation, and keep foundation work clear of standing water until the membrane has fully cured.


Order Henry Aqua-Bloc WB 5-gallon emulsion today for seamless below-grade foundation waterproofing.

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All orders are reviewed before fulfillment. You are not charged until your order is approved and ready to ship — and you may cancel at any time before that at no cost.

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