Application第 59 / 100 题
How many coats does a typical high-quality paint job over a properly primed surface usually require?
a.Always exactly one coat
b.Never more than a single primer coat
c.At least two finish coats over primer for uniform color and durability
d.Five or more coats in all cases
解析
A standard quality system is primer plus two finish coats, which gives uniform hide, color, and the specified film build. A single finish coat often shows flashing and provides less protection. The exact number depends on color change, substrate, and product recommendations.
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