Environment-friendly  chromium-free  colourful passivating agent for copper alloy,Copper colourful passivating agent,Copper  passivating agent

Environment-friendly  chromium-free  colourful passivating agent for copper alloy,Copper colourful passivating agent,Copper  passivating agent

Product Code: Q/YS.126 (YiShun brand)

First, product advantages:

This product is suitable for all kinds of copper alloy (including copper, brass, bronze, beryllium copper, lead brass, tin brass, white copper, etc.) of the color green passivation, the passivation of the copper alloy surface to form a chromium-free color passivation Film, passivation film has high binding force and abrasion resistance, can withstand neutral salt spray test for more than 96 hours, acid salt spray test for more than 48 hours

Second, product indicators:

1 Appearance: light yellow, transparent, odorless liquid

2 PH value: 4.5-6.5, partial neutrality

3 Specific gravity: >1.0

Third, use:

1.Heat the product stock solution twice to 60°C-80°C.

2.Soak the copper parts of the clean copper (deoiled, rust-removed, and polished) in a colorful passivating agent, contact the copper workpiece with the zinc alloy, remove the copper parts after 6-10 seconds, and wash them with water.

3.Dry or blow dry, dry copper parts, passivation is completed.

Other processing：Chemical nickel plating liquid、Metal coloring agent、Metal polishing Agent、Colorful passivation agent of zinc without chrome、Copper colored chocolate、Dedicated blackening agent for cast aluminum