Concrete Seal™ W

Acrylic Sealer for Concrete

Product Description

Concrete Seal W is a solvent free, water-based sealer designed to provide a moderate surface sheen and improve water and stain resistance of concrete masonry units such as ground face block.

Concrete Seal W is not tacky at elevated temperatures and is recommended for hot as well as cooler climates. Concrete Seal W is non-yellowing and is an excellent product for applications where color enhancement and surface sheen are important.

Product Uses

The acrylic co-polymer formulation within Concrete Seal W can be used in hot and cold climates, but is not recommended for application if the ambient temperature is below 4.4°C (40°F). Concrete Seal W allows vapor transmission through concrete masonry surfaces, thereby allowing the product to be used for applications where the concrete surface to be treated must remain breathable. The product is primarily designed for exterior applications.

Application Information

Surface Preparation:

First, clean the surface to prepare for successful sealing. If stains are present, use a specialized stain remover such as, Oil, Paint & Sealer Remover, Rust Stain Remover or Dirt & Grime Remover.

As a final step, use General Cleaner & Efflorescence Remover to prepare the entire surface.


Concrete Seal W can be sprayed, brushed or rolled onto a dry, clean surface to obtain maximum performance and durability. Concrete Seal W should be used in its delivered form.

Coverage Rates:

Estimated coverage rate of Concrete Seal W is 2.7-4.9 m2/L (110- 200 ft2/gal). Successive applications can be performed without waiting for the previous treatment to dry completely.

Product Advantages

  • Resists water and staining
  • Provides moderate surface sheen
  • Non-yellowing, enhances color
  • Maintains breathability


Concrete Seal W is available in 19 L (5 U.S. gal) and 208 L (55 U.S. gal) containers.

Health & Safety

Avoid contact with skin and eyes. All precautions defined on the SDS (Safety Data Sheet) for Concrete Seal W must be followed.


Avoid allowing Concrete Seal W to freeze. Always store above 4°C (40°F), but not greater than 38°C (100°F). | North America Customer Service: 1 877-4AD-MIX1 (1 877-423-6491)

We hope the information here will be helpful. It is based on data and knowledge considered to be true and accurate, and is offered for consideration, investigation and verification by the user, but we do not warrant the results to be obtained. Please read all statements, recommendations, and suggestions in conjunction with our conditions of sale, which apply to all goods supplied by us. No statement, recommendation, or suggestion is intended for any use that would infringe any patent, copyright, or other third party right.

© Copyright 2016 GCP Applied Technologies Inc. All rights reserved.

GCP Applied Technologies Inc., 62 Whittemore Avenue, Cambridge, MA 02140 USA.

In Canada, 294 Clements Road, West, Ajax, Ontario, Canada L1S 3C6.

GCP0083 MP-157-1216

This document is only current as of the last updated date stated below and is valid only for use in the United States. It is important that you always refer to the currently available information at the URL below to provide the most current product information at the time of use. Additional literature such as Contractor Manuals, Technical Bulletins, Detail Drawings and detailing recommendations and other relevant documents are also available on Information found on other websites must not be relied upon, as they may not be up-to-date or applicable to the conditions in your location and we do not accept any responsibility for their content. If there are any conflicts or if you need more information, please contact GCP Customer Service.

Last Updated: 2018-11-29