首先，在整个表面随意地扫上底涂料。

First, primer is applied liberally over the entire surface.

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在处理清洁、平整的砼表面，采用高压无气喷涂或辊涂，环氧封闭底涂料一道。

Use high voltage gas-free spraying or roller coat to deal with the cleanness and roughness of the surface. And paint a coat with epoxy closed primary coat paint.

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底涂料的施工环境如下：施工温度不能太高，以免有机溶剂在施工前就挥发完了。

The construction environment of the bottom coating is as follows: the construction temperature can not be too high, so as to avoid the organic solvent before the construction of volatile.

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