1 对镀锌层必须采用轻扫级喷砂法去除灰层、油污等杂质，然后涂刷70-H环氧铁红防腐漆。

2对普通钢材以喷砂法进行除锈处理，除尽铁锈、氧化皮等杂物。表面处理质量控制应达到GB8923规定的“涂装前钢材表面锈蚀等级和除锈等级”标准规定的Sa2.5级，表面粗糙度35-75um，喷砂后将砂尘除尽。

3如遇焊接部件，在烛焊接后的72小时之内不能进行涂装。

4喷砂后的钢材应在4小时之内完成第一道油漆的涂装。如果采用ET-98无机磷酸盐长效型富锌涂料作为底漆，一般除油、除锈即可，可不喷砂、抛丸，而用钢丝刷、磨光机或钢砂纸处理，可带微锈的情况下涂刷施工。

1 to the galvanized layer must use light sweep sand blasting method to remove the ash layer, oil and other impurities, then besmear brushs 70 - H iron red epoxy anticorrosive paint.

2 for ordinary steel sandblasting derusting processing, in addition to all rust, scale and other sundry. Surface treatment quality control shall, in accordance with the provisions of reach GB8923 "steel surface before coating corrosion level and descaling grade" standard Sa2.5 level, 35-75 um, surface roughness after sandblasting sand dust.

3 in case of welding parts, the candle cannot undertake coating within 72 hours after welding.

4 sand blasting of steel should be completed within 4 hours after the first line of paint coating. If the ET - 98 type inorganic phosphate long-term zinc rich paint as primer, the general oil removal, rust removal, don't sand blasting, shot blasting, and with a wire brush, polishing machine, or steel grit paper processing, can take the rust coating operation cases.

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