铝镁锰屋面彩钢板有颜色差异的原因

造成铝镁锰屋面彩钢板色差的主要原因如下：
1、 涂料粘度不均匀：
铝镁锰屋面彩钢板涂料使用时，由于不同颜色的颜料粘度不一样，或由于混合不均匀，会出现结块现象。如果不能及时清除结块，在涂布压力下，颜料块会受到挤压，导致铝镁锰板镀层产生缺陷或变色。其主要原因是涂料使用过程中稀释剂挥发过快，造成附着力，如果涂料混合后不及时使用漆桶顶部的涂料，会因沉淀而降低粘度。

The main reasons for the color difference of aluminum magnesium manganese roof panels are as follows:

1、 Uneven viscosity of coating:
When the paint is used, due to the different colors of pigment viscosity is not the same, or due to uneven mixing, there will be caking. If the caking can not be removed in time, the pigment block will be squeezed during the coating pressure, resulting in defects or color changes of the aluminum magnesium manganese plate coating. The main reason for this is that the diluent volatilizes too fast during the use of the coating, resulting in adhesion If the coating on the top of the paint barrel is not used in time after the coating is mixed, the viscosity will be reduced due to precipitation.
2、 Mixing of different batches of coatings:
The common reason for color difference is to mix different batches of aluminum magnesium manganese roof panel coatings. Due to different batches of coating production operations, there will be more or less differences, especially when coating processing, the proportion of different batches will be different. Even if the color coating is from the same manufacturer, there will be more or less color difference between different batches of pigments. If two different batches of pigments are mixed, there will be color difference in the finished product coating.
3、 The thickness of color coating layer is different
In our daily life, we all know that if we paint a place repeatedly with a color brush, the color will become darker. Similarly, in the production of aluminum magnesium manganese roof panel, another reason for color difference is that due to the uneven thickness of the coating during coloring, the color of the coating is deepened in the place with thick film thickness, while the color is lighter in the thin film area. The main reason for the uneven thickness of the coating film is that the force on the film fixing roller is uneven when the film is applied.