保定润涂装饰工程有限公司

保定环氧地坪漆为啥缩孔?

信息来源:www.dpgc1688.com   2019-08-19 16:28:16

保定环氧地坪漆在涂装中出现缩孔现象有施工方面的原因,也可能是涂料存在问题。如金属底材除油、除锈不干净,被涂物表面有油污或灰尘,就会导致漆膜缩孔。底涂层太光滑坚硬(环氧底漆常有这种现象),不经打磨处理,直接涂装面漆,因各自表面张力不一致,就会产生缩孔,甚至鱼眼。施工环境被硅油、油气污染,也产生缩孔。涂料生产时用错含硅助剂或加量不恰当,会引起涂膜缩孔,尤其是重涂时,很容易产生鱼眼。

The shrinkage of epoxy floor paint in painting is due to construction reasons, and may also be a problem of the paint. If the metal substrate degreasing, rust removal is not clean, there is oil or dust on the surface of the coating, it will lead to shrinkage of the paint film. The primer is too smooth and hard (this phenomenon often occurs in epoxy primers). Without polishing, the primer is directly coated. Because of the different surface tension, shrinkage holes and even fish eyes will occur. The construction environment is polluted by silicone oil and oil and gas, and shrinkage is also produced. The inappropriate use of silicon-containing additives or additives in the production of coatings can cause shrinkage of coatings, especially in the case of re-coating, it is easy to produce fish eyes.

保定环氧地坪漆在涂装时要防止这种现象,首先金属表面处理要干净,船舶维修要用高压水冲洗干净旧漆膜和污物,让底材干透后才涂装。不要在油气在和灰尘大的环境中施工,制造涂料时,为了消泡和改善漆膜流干性,添加含硅消泡剂和流平剂时,要选用可重涂的助剂,并挖控制加入量。

Epoxy floor paint in painting to prevent this phenomenon, first of all, the metal surface treatment to be clean, ship maintenance to use high-pressure water to clean the old paint film and dirt, so that the base material is dry before painting. Do not use oil and gas in dusty environment. In order to defoam and improve the dryness of paint film, when adding silicon defoamer and leveling agent, we need to select reapplient additives and control the amount of additives.