skimming coat

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finish coat, fining coat, finishing coat, setting coat, skimming coat, white coat

The final or last coat of plaster, which provides a decorative surface or a base for decoration, usually about to 3/32 in. (1.6 to 2.4 mm) thick.

skim coat, skimming coat

A thin coat of plaster; either the finish coat or a leveling coat.