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AD Chemicals

Pre-treatment of aluminium - AD ALU

AD-ALU

CHROMATE 12 LC

CHROMATE 12 LC 2 is a liquid acidic product that produces a classical yellow chromate conversion coating on aluminium. The process works at a very low chrome content in the bath. By using CHROMATE 12 LC 2 a considerable reduction of 60 to 70% in the amount of chromic waste will be achieved.

CHROMATE 12 LC 2 is based on hexavalent chromate and can be used in immersion and spray applications.

The formed conversion coating greatly improves the paint adhesion and corrosion resistance.

 Application:

 Bath make up :

CHROMATE 12 LC MK-UP 10 ml/l

CHROMATE 12  ACC 1.3 ml/l  

Replenisher : CHROMATE 12 LC REPL

 

 

pH : 1.5 – 1.9

 

Treatment time :

 Immersion 2 - 5 minutes

 Spray 45 - 120 seconds

Temperature : 20 - 35 °C

Pressure : Spray pressure 0.7- 0.9 bar