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AL-100 Aluminum Alloy Trivalent Chromium Passivator

AL-100 Aluminum Alloy Trivalent Chromium Passivator

  • High Light

    Trivalent Chromium Passivator


    Aluminum Alloy Trivalent Chromium Passivator


    AL-100 Trivalent Chromium Passivator

  • Type
    Concentrated Liquid
  • Feature
  • Use
    Aluminum Alloy And Aluminum Casting
  • Temp.
  • PH
  • Time
  • Place of Origin
  • Brand Name
  • Model Number
  • Minimum Order Quantity
  • Price
  • Packaging Details
    Standard export packaging
  • Delivery Time
    15-25 work days
  • Payment Terms
    L/C, D/A, D/P, T/T, Western Union, MoneyGram
  • Supply Ability

AL-100 Aluminum Alloy Trivalent Chromium Passivator

AL-100 Aluminum Alloy Trivalent Chromium Passivator



1. Properties

1. concentrated liquid


2. for trivalent chromium passivation of aluminum


3. Its anti-corrosion performance is superior to six valence chromium passivation.


4. can also be used for aluminum alloy and aluminum casting.


5. also can be used for the pretreatment of paint, powder coating and sizing processing.


6. It is easy to operate for immersion, spray, hand wipe.


7. formed a transparent, light colored coating.


8. low contact resistance, less than 0.8 mOhm/cm2.


9. can be resistant to the high temperature of 100 centigrade degree without detracting from its corrosion resistance ability


10. environmental protection, safe non-toxic, simple operation and wastewater treatment.


11. meet or exceed the MIL-DTL-81706 and MIL5541 corrosion standard (according to ASTMB-117 and DIN 50021 SS neutral salt spray test standard Quasi, more than 336 hours to appear white rust)


2. Technological process

Standard immersion technology

Aluminum alloy (silicon content <1%): alkaline degreasing → alkali erosion → descaling → immerse AL-100

Aluminum alloy (silicon content >1%): alkaline degreasing → cleaning → immerse AL-100


Standard spray process

Acidic degreasing → spray AL-100


1. The film with AL-100 treatment can be carried out immediately a coating process after drying. It is better for coating process to place 24 hours after passivation.


2. Maintenance: adjust the concentration and pH to the best state according to regular analysis.


3, Consumption: The consumption almost only depends on the carrying amount. Every 1m2 product (including carrying amount), need to add a concentrated solution of 15-25ml.


3. Operating instructions

AL-100 diluted with deionized water to make up: please clean thoroughly before making up, for the new channel and new production lines, cleaning with 10% sulfuric acid solution, then clean thoroughly with water, then add the measured AL-100 and deionized water, stirring evenly, measure the pH value, and adjust the pH value to 3.9.

New solution Preparation Technology process Optimum range

Spray (100-500ml/L)




Temp. 30-40℃ 40℃
PH 3.7-3.95


(adjust with 5% sulfuric acid solution or 1% sodium hydroxide solution)


30-60s (as coating pretreatment at 40℃)

1-3min (as corrosion treatment)

1 minute


2 minutes

1-4min (as coating pretreatment at 30℃)

2-6min (as corrosion treatment)

2 minutes


4 minutes

Spray pressure 0.5-1.5bar 1bar
Stir Not necessary  
Bath material Stainless steel or with acid and fluoride resistant lining of steel  
Filter Filter when necessary (at least 2 cycles per hour)  
Heating Heat when necessary (Heating equipment should be acid and fluoride resistant)  
Cooling Not necessary  
Exhaust device Suggest to use for health of workers  

Tips: In the product inventory, there will be some deposits, but does not affect its quality and performance. The surface must be cleaned thoroughly without oxide film before passivation with AL-100.