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The following cleaning procedure is recommended unless
otherwise indicated during testing:
- Thoroughly saturate a large portion of the masonry surface with clean water.
- Using a densely packed, soft-fibered masonry washing brush or low-pressure spray (50 psi maximum), apply diluted solution freely. (Do not apply cleaner with
pressure spray above 50 psi. Such an application will drive the chemicals deep into the surfaces, making it more difficult to rinse completely.)
- Depending on the absorption rate of masonry and drying conditions, allow cleaning solution to remain on the wall for approximately five (5) minutes. Do not allow cleaner to dry into the masonry because it may leave a residue and cause staining.
Note: To remove mortar smears that have been allowed
to harden on the wall and cannot be removed
by following the procedures listed above, a stronger solution of the cleaner may be applied. The surface must remain wet at all times strictly following
manufacturer's instructions.
WARNING! Never use high pressure on PRAIRIE stone. This may leave unsightly wand marks on the face of the units. Failure to strictly follow manufacturer's
instructions can result in permanent damage to the
finished faces.
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