NM CID GS-30 Practice Questions - New Mexico CID GS-30 Plastering, Stucco And Lathing Examination Exam

How should a portland cement scratch coat be treated before the brown coat?

Trowel it glass-smooth so the brown coat slides Paint it with oil-based enamel Cover it with polyethylene and leave it sealed until the finish coat Score or scratch it horizontally to provide a mechanical key for the brown coat

Correct Answer:

Score or scratch it horizontally to provide a mechanical key for the brown coat

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