Foshan Dechenghezhong Chemistry co.,LTD
No,12 Yuyang 2nd Road, Huchong Industrial District, Nanzhuang Town,
Chancheng District, Foshan City, Guangdong, China
Tel:0086-757-82012410
Fax:0086-757-82012430
Website:http://dchz.en.alibaba.com
E-mail:fsdchz@outlook.com
DCHZ - Pik211 Acid Salt - Deoxidizer/Activator
DCHZ-Pik 211 is a mixture of dry, granular, free-flowing acid salts which is dissolved in water and used to
deoxidize and/or activate metal surfaces prior to plating or chemical conversion finishing. The mildly acidic
solutions are used at temperatures ranging from ambient to 180°F with elevated temperatures enhancing the
activity and are generally required for derusting steel surfaces.
DCHZ-Pik 211 is used to remove oxides and to activate steel, stainless steel, zinc plate, zinc diecast, copper
and copper alloys.
DCHZ-Pik 211 is not as harsh in its action on metal surfaces as are mineral acids.
DCHZ-Pik 211 solutions do not have to be ventilated if used at ambient temperatures.
EQUIPMENT
DCHZ-Pik 211 solutions must be contained in acid-resistant tanks such as polypropylene, polyethylene, PVC or rubber lined steel.
Heated solutions should be ventilated.
Quartz immersion heaters should be used for heating the solutions.
SOLUTION MAKE-UP
Prior to charging the production tank, some experimentation should be performed with properly prepared sample parts using various concentrations of DCHZ-Pik 211 solution, immersion times and temperatures. The sample parts should be prepared by thoroughly cleaning and degreasing the surfaces with metal cleaner.
As a general guideline the following concentrations of DCHZ-Pik 211 are recommended for use at ambient temperatures except for stainless steel:
|
Steel
|
Activation
|
4-8 oz/gal
30 to 60 second immersion
|
|
Rust Removal
|
16-32 oz/gal
2-5 minute immersion
|
|
Stainless Steel
|
Activation
|
16-32 oz/gal
2 - 5 minute immersion
150°F to 180°F
|
|
Copper and its alloys
|
Deoxidizing
|
4 to 16 oz/gal
30 to 60
second immersion
|
|
Zinc plate & diecast zinc
|
Deoxidizing
|
4 to 8 oz/gal
20 to 60 second immersion
|
|
Zinc Diecast
|
Prior to Plating
|
1 to 2 oz/gal.
1 to 2 minutes
|
Residual DCHZ-Pik 211 solution must be removed with a thorough cold water rinse prior to further
finishing.
SOLUTION MAINTENANCE
Small periodic additions of the DCHZ-Pik 211 salts are made to the solution to maintain the desired degree
of activity. The solution is disposed of only when its effectiveness is reduced by the accumulation of
dissolved metals, dirt, oil, grease, etc.
CAUTION
The DCHZ-Pik 211 salts and solutions are acidic. They may cause skin and eye irritation. Eye protection,
rubber gloves and a rubber apron must be worn when working with DCHZ-Pik 211 and its solutions.
Avoid prolonged contact with skin.
In case of contact with skin or eyes, flush freely with running water for at least 15 minutes. For eyes, get
medical attention.
Avoid contact of DCHZ-Pik 211 and its solutions with alkaline materials.
Do not mix DCHZ-Pik 211 or its solutions with any other chemicals or solutions.
