CPC30620 Painting Practice Questions - Certificate III In Painting And Decorating (CPC30620) Exam

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Why must new masonry, render or concrete be allowed to cure fully (typically several weeks) before painting with most coatings?

To allow the colour of the masonry to fade Because high alkalinity and moisture cause saponification, blistering and adhesion failure To let dust settle on the surface Because masonry must reach room temperature first

Correct Answer:

Because high alkalinity and moisture cause saponification, blistering and adhesion failure

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