In the plastering of surfaces with three coats, the second coat of plaster applied is also known as _____.
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A.
under coat
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B.
rendering coat
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C.
setting coat
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D.
floating coat
Correct Answer:
D. floating coat
Explanation:
The second coat in a three-coat plastering process is known as the floating coat. In this traditional application method, each layer serves a specific structural purpose: - The first coat is the rendering coat (or scratch coat), which is applied directly to the surface and scratched to provide a mechanical bond for the next layer.
- The second coat is the floating coat (or brown coat), used to level out imperfections and create a flat, uniform surface of a specific thickness.
- The third coat is the setting coat (or finishing coat), which provides the final smooth or textured surface for aesthetic appeal and durability.
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