AL Lath Plaster Practice Questions - Alabama Lath And Plaster Contractor Examination Exam

Before applying plaster over a solid masonry or concrete base, what surface condition is most important?

The surface is clean, sound, and free of form oil, loose material, and bond-breaking contaminants The surface is painted with oil-based enamel for smoothness The surface is covered with polyethylene film The surface is polished to a glass-like finish

Correct Answer:

The surface is clean, sound, and free of form oil, loose material, and bond-breaking contaminants

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