一道涂层 meaning in Chinese

one coat

There will always be a small demand for this type of plaster as a finishing coat .
作为最后一道涂层，这种类型的墙粉总会有少量的需求。
Best intercoat adhesion is obtained when the subsequent coat is applied before the preceding coat has cured
要达到附着力良好的最佳复涂效果，则要求后继涂层必须在前一道涂层尚未完全固化之前施工。
Normally none . an optional second coat will , however , prolong the service life , and might be required to cover dark primers
通常不要求。在特殊情况下，例如可能需要施工于深色底漆上时，可选择再增加一道涂层，由此也能延长保护时间。