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Why Do We Need To Passivate Aluminium Alloy?
Jun 19, 2018

In order to improve the corrosion resistance and discoloration resistance of aluminum alloys, we usually deposit a passivation film on the surface. I.M.T.’s Chromium-free passivator HN-110 is green and can form chemical chromium-free film on the surface of aluminum alloy.

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Product feature of HN-110

• Achieve uniform, colorless and transparent chemical chromium-free film on aluminum and aluminum alloy parts (passivation film thickness is about 30~150mg/m2). It has excellent anti-corrosion properties and decorative properties, and has excellent discoloration ability.

• The HN-110 chromium-free passivator is a colorless, transparent liquid that does not contain heavy metals such as chromium, lead, cadmium, and other harmful organics. It is an environmentally friendly product.

• The passivation film is firmly adhered and can significantly enhance the adhesion of the workpiece to the coating and paint.

• The bath is simple to control and operate. It is easy to prepare and has stable performance and long service life, which results in lower overall cost and high production efficiency.


Bath Maintenance

During the production process, the conductivity of the bath and the pH of the bath should be periodically analyzed. When the conductivity of the bath is less than 500 μs/cm or when the pH is higher than 3.8, the HN-110 chromium-free passivator should be added, and the passivation tank needs to be equipped with circulating filter filtration.


Guangdong Intensive Eco-tech Co., Ltd. (I.M.T.) specializes in R&D and production of hardware/plastic surface treatment additives, electronic plating additives, PCB chemical solutions, special cleaning chemicals for pretreatment, and electrophoretic paints. The pursuit of precision and the pursuit of excellence have always been the requirements of I.M.T.. Over 30 years of experience in the production of surface treatment additives have made I.M.T. become a company that produces high-quality products. Therefore, I.M.T. surface treatment additives have been well received by customers for a long time.


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