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Problem Solving Forum (6)

When refurbishing an old concrete secondary containment wall around a storage tank, what criteria should be used to determine if a crack can be repaired for coating or if the section of the wall should be rebuilt?

What’s the best way to protect a masonry wall from freeze/thaw cycling?

What’s the best way to protect porous masonry from graffiti?

What is the optimal moisture content for masonry before painting can begin?

When a specification calls for removal of only loose coating rather than complete coating removal from a masonry substrate, what surface preparation methods are most likely to work without damaging the intact coating that is left on the surface?

What is the best way to remove graffiti from the surface of historic stone masonry on a church while preserving the appearance properties of the substrate?


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