Stone Maintenance

Moisture Damage

Efflorescence.  Water penetrating exterior wall cavities through defective flashing or unsealed joints can cause efflorescence, a mineral salt residue left on the surface of masonry ... (read more)

Topical Sealers and Impregnators

Topical sealers are coatings designed to protect the surface of stone against water, oil, and other contaminants. They are formulated from natural wax, acrylic, and other ... (read more)

Maintenance of Interior Stone

Polished-finish stone has a glossy surface that reflects light and emphasizes the color and marking of the material. It is used in interiors as wall veneer, ... (read more)

Exterior Stone

Exterior stone is a general term denoting stone installed in a place where temperature, moisture, and airborne contaminants are caused primarily or solely by the ... (read more)

Stain Removal

Surface stains can often be removed by cleaning with an appropriate commercial cleaning product or household chemical. Identifying the type of stain is the key ... (read more)


General Application Definition And Use. Applied to stone to remove stains, a poultice is a chemical or mixture of chemicals combined with an absorbent material, ... (read more)

Exterior Building Cleaning

General. The purpose of this section is to give the Specifying Authority the basic information to prepare a specification for the cleaning of exterior building ... (read more)