Block & Wall® Acrylic Elastomeric Waterproof Coating

(1 customer review)

From: $49.00

Ames® Block & Wall® Acrylic Coating is an acrylic waterproofing sealant for exterior, above-grade walls. Buy more and save!


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What is Ames’® Block & Wall® Acrylic Coating?

Protect your exterior and interior surfaces from the elements with Ames® Block & Wall® Liquid Rubber Acrylic Coating. Block & Wall® waterproofing sealant is up to 800% elastomeric and is for use in interior, exterior, and above grade walls. This coating is heavy duty and resists mold, fungus, and mildew. 

Where to Use:

• Block Walls
• Basement Walls
• Stucco
• Tar Coated Walls
• Pretreated Plywood
• Sheet Metal
• Plastic
• Precast Concrete
• Wood
• and many other surfaces


Ames® Block and Wall® is ready to use – no mixing required. it can be applied with a coating brush, a push broom, a low nap roller with a long handle or a Commercial Airless Sprayer. In addition, you will need Ames® Peel & Stick™ Seam Tape and scissors or a utility knife. For larger commercial jobs, we recommend an airless sprayer with a 3/8 inch, 150 foot hose. Graco, Bulldog or Titan brands work well. Call for more information 1-888-345-0809.


Read all label instructions before beginning. Always run a test patch first in an inconspicuous area, to ensure that proper adhesion and drying occurs and the product works to your satisfaction. Careful and complete preparation will ensure the best results and contribute to the life of the coating. The wall surface must be clean, dry, and free of loose material. Loose or peeling paint should be removed with a wire brush and rough wood surfaces sanded. Metal or concrete surfaces may be prepared by using a disc grinder and carborundum disc. Care should be taken so as not to grind though the metal. Do not apply Ames’® Block & Wall® over wet, loose or crumbling concrete. Repair the concrete and allow to cure. Mildew may be removed with a power washer. All major cracks, joints and seams should be caulked with Ames® Blue Max® Trowel Grade liquid rubber. Do not use a silicone caulk. It is important to use Ames® Seam Tape on all joints and cracks to avoid future cracking and leaking. Apply around flashings, windows and cracks in the walls. Mask all sensitive areas before applying coating.


Ames® Block & Wall® waterproofing coating may be brushed, rolled or sprayed. Apply a minimum of one two coats at the rate of one gallon per 100 sq. ft. per coat. Two coats minimum is best, three to four superior. The application must be applied in a continuous, unbroken seal of a minimum dry thickness of no less than 30 mils (the thickness of a dime) over the entire surface.

Estimated Coverage:

GOOD: Two coats of Ames® Block & Wall® elastomeric waterproofing coating covers and waterproofs, in most cases.
BETTER: Three coats or three gallons of Ames® Block & Wall® per 100 square feet.
BEST: The very best product application is five gallons per 100 sq. ft. or three to five coats.

Weather & Drying Guidelines:

Ames® Block & Wall® is best applied between 40° to 90° F (10° to 32° C) on warm dry surfaces. Apply when the streets are dry, the sun is in the sky and no inclement weather is forecast. Starts to dry in 2-8 hours, depending on thickness of application and weather; allow at least 24 hours to cure. Low temperatures, high humidity and evening and morning dew will require increased drying/curing time.

Clean-up, Storage, and Disposal:

Clean tools and small spills with water. Store unused product in its original container, tightly sealed and protected from freezing. Dispose of this product in accordance with local, state or federal requirements.

Can be used in Conjunction with:
Ames® Blue Max®
Ames® Peel and Stick™ Seam tape
Ames® Super Primer™
Ames® Elasto-Barrier®

For Technical and Safety Data Sheets Please Contact Us

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1 review for Block & Wall® Acrylic Elastomeric Waterproof Coating

  1. Phil D

    Best there is.

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