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    环氧地坪漆施工后为什么会出现【针孔】现象?

    2019-07-30 14:12:04 无锡盛发地坪科技有限公司 阅读

    环氧地坪漆涂料在涂装后由于溶剂挥发过快,使漆液来不及补充,从而形成许多圆形的小穴、小圈或像皮革的毛孔那样的针状小孔的现象。喷涂和辊涂法施工的清漆和颜料份量较低的涂料容易出现针孔弊病。形成针孔的直径一般很小,大约100μm左右,最大的也有几毫米,形成圆锥形或半球形。环氧地坪漆施工后产生【针孔】的原因:

    The epoxy floor paint can not be replenished due to the rapid volatilization of solvent after coating, thus forming many round holes, small circles or needle-like holes like leather pores. Paints with low pigments and varnishes sprayed and rolled are prone to pinhole defects. The diameter of the pinhole is usually very small, about 100 microns, and the largest is a few millimeters, forming a conical or hemispherical shape. Reasons for pinholes in epoxy floor paint after construction: 1、环氧地坪漆涂料施工黏度过大,施工场所温度较低,使用涂料搅拌后由于停置的时间过短,仍有残存的气泡,

    1. The construction viscosity of epoxy floor paint is too high and the temperature of the construction site is low. After mixing with the paint, there are still remaining bubbles due to the short stopping time.


    2、溶剂搭配不当,低沸点挥发性溶剂用量过多,造成涂膜表面迅速干燥,而底部的溶剂不宜逸出,

    2. The improper matching of solvents and the excessive use of volatile solvents at low boiling point result in the rapid drying of the film surface, while the solvent at the bottom should not escape.


    3、环氧地坪漆涂料中有水分,空气中有灰尘,施工地面有发汗和油污等现象,

    3. There is moisture in epoxy floor paint, dust in the air, sweating and oil pollution on the construction floor.


    4、在喷涂施工中喷枪的压力过大,喷嘴口径过小,喷枪和物面的距离太远,

    4. In spraying construction, the pressure of spray gun is too large, the diameter of spray nozzle is too small, and the distance between spray gun and object surface is too far.


    5、施工场地环境温度过高,被涂物或是施工地面温度过高,

    5. The ambient temperature of construction site is too high, and the temperature of coating or construction ground is too high.


    6、环氧树脂地坪漆涂料流平性差,释放气泡性差。

    6. Epoxy floor paint has poor leveling property and poor releasing bubbles.



    预防环氧地坪漆施工后出现【针孔】的方法:

    Methods to prevent pinholes from occurring after construction of epoxy floor paint:


    a、环氧树脂地坪漆涂料施工黏度不宜过大,施工场所温度不宜过低。涂料搅拌后,应放置一段时间,待气泡跑净后再施工,

    A. The construction viscosity of epoxy floor paint should not be too high and the temperature of construction site should not be too low. After mixing the paint, it should be placed for a period of time before the bubbles run away.


    b、注意溶剂的搭配,应控制低沸点溶剂的用量,

    B. Attention should be paid to the mixing of solvents and the amount of solvents with low boiling point should be controlled.


    c、施工前应除涂料中的水分和空气中的灰尘,确保被涂物表面应处理干净后再进行施工,

    C. Moisture and dust in the paint should be removed before construction to ensure that the surface of the coating should be cleaned before construction.


    d、应掌握好喷涂的技术,

    D. The technology of spraying should be mastered well.


    e、注意施工场所的环境湿度,被涂物表面的温度,不应高于施工时的环境温度,

    E. Attention should be paid to the environmental humidity of the construction site and the temperature of the surface of the coating should not be higher than that of the environment at the time of construction.


    f、调整涂料配方。

    F. Adjust the formulation of paint.


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