Tuesday, September 29, 2015

POST TREATMENT (CHROMIUM BASED)

DIALENE 3 is a liquid, Cr6+ final rinse for Zinc and Iron phosphating on Steel, Zinc-coated and Aluminium made materials. Paint adhesion and corrosion resistance are improved through rinsing with DIALENE 3.
Passivating with DIALENE 3 gives temporary corrosion protection to sensitive surfaces after cleaning or etching. DIALENE 3 can be applied in dip or spray processes.

Reaction of passivating -- This product make an passive film in substrate.
Our Product : Dialene 3, packaging : 25Kg/Can

APPLICATION:
DIALENE 3 is used by spray or immersion; the average working parameters are:
Concentration: 0.02 to 0.1 % 
Free Acid: 0.2 to 0.6 points 
Total Acid: less than 2 
Temperature: ambient to 70°C 
Time: 15 to 45 seconds 

THE PROCESS :
The complete process for conversion coating a metal surface normally consists of the following steps:
A.  Conversion coating
B.  Water rinsing
C.  Treating with the DIALENE 3 post treatment solution
D.  Drying

DRYING
The articles treated with DIALENE 3 should be dried immediately.  Enough heat usually remains from the hot DIALENE 3 treatment to cause heavy gauge articles to dry satisfactorily.  Articles which do not dry quickly by this method should be force-dried by other means, such as with an air blow off or a drying oven.

ADVICES :
- The post treatment follows the water rinse after the conversion coating treatment solution. 
- Effort should be given to providing an adequate rinse following the conversion coating step to avoid excessive contamination of the post treatment solution.
- The higher temperatures facilitate drying, while the lower temperature reduce the tendency for staining to occur.
- A portion of the solution should be discarded continuously to prevent excessive contamination. 

For more details, please contact us :
PT. Aalen Chemicals Indonesia
Jl Pulobuaran III Blok G3,
Kawasan JIEP Pulogadung
Tlp : 021-46830522
Web : www.aalen.co.id
Blog : www.aalenchemicals.blogspot.com

Email : aalen.chemicals@gmail.com, aalen@cbn.net.id

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