Used as a passivating agent for aluminum alloys and zinc alloys

There are five kinds of passivating agents for aluminum alloy and zinc alloy: First, the trivalent chromium passivation agent model SY-40201, the second is the high temperature type trivalent chromium passivation agent model SY-40202, Three is the model SY-40204, passivation film color is golden yellow chrome-free passivation agent, the fourth is model SY-40205, passivation film color for the true color of the chromium-free passivation, five is the model SY-40203 , Dedicated to die-casting aluminum, corrosion resistance, film color for the true chromium-free passivation agent, the following one by one.

1, SY-40201 trivalent chromium passivation agent, can be used for aluminum alloy and zinc alloy passivation, with strong corrosion resistance, aluminum alloy bare metal salt spray can be up to 500 hours, zinc alloy bare metal salt Can reach 72 hours, the film color can be true, blue and white, blue color.

2, SY-40202 trivalent chromium passivation agent, is due to passivation, the high temperature baking operation process two development, baking temperature up to 150-300 degrees, corrosion resistance can be at least 48 hours, can be used at the same time In the aluminum alloy and zinc alloy. The color of the film is slightly yellower than the SY-40201.

3, SY-40204 chromium-free passivation passivation of the film color for the golden color, can greatly improve the aluminum alloy and zinc alloy and paint adhesion, paint, the grid neutral salt spray can reach 1200 hours or more.

4, SY-40205 chrome-free passivation agent, and SY-40204 is the difference between the passivation of the film color, its performance and SY-40204 basically the same.

5, SY-40203 chrome-free passivation agent, is a completely environmentally friendly passivation agent, corrosion resistance of the industry front-end, specifically for die-casting aluminum passivation.

For the aluminum alloy and zinc alloy of five different types of passivation (chromium-free passivation agent), better for the majority of users to provide services.