SOS-50 on New Construction

Marriot Hotel - Portland, OR


The Marriot Hotel in Portland, Oregon suffered mortar smears after construction.

Applying SOS-50 removed the mortar smears with great success!


SOS-50 is a buffered detergent-based solution designed for removing mortar smears and efflorescence from new masonry structures. SOS-50 can be used on most masonry substrates.

Members and Affiliates

Member of the Cast Stone Institute     Mason Contractors Association of America     Member of the Pennsylvania Concrete Masonry Association     Member of the Mid-Atlantic Masonry Association (MAMA)