Aluminum powder because of its silver-white metallic luster, so commonly known as aluminum silver powder or silver powder, its chemical composition is actually "aluminum", not "silver".

Application: Powder coating, ink, plastic masterbatch, printing, imitation gold paper, imitation gold card, gold film, textiles, water-based paint.

During the use of electrophoretic paint, if the renewal rate is not enough, there will be a darkening trend of oxidation, but the combination of aluminum silver paste and electrophoretic paint is a new highlight of metal surface treatment! It is in line with the new trend of green environmental protection surface treatment.

When applying on electrophoretic paint, note the following points:

A. The silver paste itself is a ductile sheet with a malleable coating. Too high acid and base value, too long idle (slowly oxidizing itself) and high-speed stirring will destroy the integrity of the surface coating and itself, resulting in darkening of the paint, reduced hiding power, coarse grain of the paint film and other adverse phenomena. If this phenomenon occurs, the process flow and frequency of use should be adjusted. Mixing speed (less than 500 RPM) to maintain stability.

b, because the ratio is significant, it is easy to precipitate, so it is required that the tank design should not have a dead Angle as far as possible, the return pipeline should pay attention to the design of the workpiece to be processed, equipped with the motor, can not use the magnetic pump, can not heat, mechanical chemical speed pump is better, with the frequency converter, can easily control the flow rate, otherwise it is easy to produce precipitation, back coarse, darkening, high and low color difference and other defects. It is better to use bag filter.

C. If the product is blackened in use, the yellowing phenomenon may also be caused by poor sealing when the product is stored, resulting in oxidation of aluminum silver paste and blackening, please re-sample and pay attention to sealing. If there is yellowing phenomenon is mainly caused by the baking temperature is too high.

d, the surface of the workpiece particles, oxidation black, may be due to poor dispersion, a long time without feeding or insufficient feeding or the product contains impurities caused, if the product contains impurities and appear particles, should be filtered with a filter cloth before use and then deployed (filter cloth should be 200 mesh) working fluid.

e, pay attention to preservation: storage temperature is 15 ~ 30℃. Avoid direct exposure to sunlight, rain, or excessive temperatures.

f, ensure that the storage temperature is not lower than 15 ° C (in winter or the surrounding temperature is equal to or below 10 ° C should pay special attention).

g, aluminum silver slurry working liquid can not be directly ultrafiltered, silver slurry and tank liquid need to be separated, and then ultrafilted tank liquid.

h, aluminum silver paste working fluid to ensure that there is a certain amount of replacement, in 1 month to add the concentrated paint used in the grooving, the amount of aluminum silver paste, that is, the replacement cycle is 1 month.