NV C-20 Tiling Practice Questions - Nevada C-20 Tiling Contractor Examination Exam

A concrete slab still has a film of curing compound. What does ANSI A108.01 require before bonded thin-set tile?

Leave the film to keep the slab from drying under the mortar Prime the film with PVA drywall primer and set tile the same day Remove the curing compound so the surface is clean and free of bond-breaking coatings Cover the film with unsanded grout and then thin-set

Correct Answer:

Remove the curing compound so the surface is clean and free of bond-breaking coatings

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