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Removing Efflorescence from Concrete Block Walls

By: Advertiser
White efflorescence stains on concrete block wall.

White efflorescence stains on concrete block wall.

Before sealing a concrete block wall, it’s important to remove any white efflorescence using an efflorescence remover such as QUIKRETE Efflorescence & Rust Remover.

Once the wall has been cleaned, apply a waterproofing sealer to prevent more moisture from coming through the wall.

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Further Information

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Waterproofing basement walls is a great way to reduce the infiltration of moisture into these spaces. But before you apply a sealer, it’s important to remove any efflorescence from the block wall.

A water based efflorescence remover is more effective than scrubbing the surface and requires less work. Once the surface is clean, you can apply a waterproofing sealer to prevent any more water from migrating through the wall.

These tips brought to you by Quikrete Cement and Concrete Products. It’s what America’s Made Of.


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  • Ed Mikula Says:
    April 19th, 2017 at 9:30 pm

    how do you remove hard water stains (white residue) from concrete or cinder block walls? thanks


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Removing Efflorescence from Concrete Block Walls