PASSIVATION LIQUID SS (Drew PL)
LIQUID FOR PASSIVATING AUSTENITIC STAINLESS STEEL
* Passivating Liquid is based on nitric acid and non-ionic surface active substances.
* The product provides austenitic stainless steel with a protective oxide layer after it has been pickled. The metal is then passive.
* Passivating Liquid, undiluted, is suitable for use only on austenitic stainless steel.
Passivating Liquid is used mainly for the passivation of pickled installations and tanks.
It can be applied in the following ways:
1. by circulation
2. by spraying
Direction for use
A passivating treatment with Passivating Liquid can only take place if the steel has been pickled previously (i.e. treated with Pickling Liquid or Pickling Paste).
This method is applied mainly in pipe systems. Fill the system with undiluted cold Passivating Liquid. The time taken for treatment is approx. 2 hours. Drain the system and rinse thoroughly with demineralized water. After drying test the passivity of the steel using a Palladium Test Set.
N.B. Before disposing the passivating fluid it should be neutralized. for this use slaked lime.
This method is generally used in tanks with a tank washing device which is resistant to our product Passivating Liquid.
The Passivating Liquid fluid is sprayed undiluted using a spray time of approx. 15 minutes. After this rinse thoroughly with plenty of water using, preferably, demineralized. After drying, test the passivity of the steel with the aid of a Palladium Test Set.
Strong acidic product. Contains nitric acid. Fully miscible with water. Undiluted it is suitable for use only on austenitic stainless steel. When diluted it is suitable for cleaning aluminum.
Specific gravity (at 20°C) : approx. 1.1 kg/ltr.
Flashpoint : none
pH (1% solution) : approx. 1.0Print Send enquiry