Technical specifications
FIPROCOAT 9001 is a pre-painting treatment product, free of chromium and heavy metals, used to produce a blue conversion coating on iron, and a colorless to iridescent conversion coating on aluminum and galvanized steel. The resulting coating layer has excellent paint adhesion properties and provides effective protection against corrosion. For use in lines subject to flash rust.
Use and Applications
FIPROCOAT 9001 is applied both by spray and immersion, in aqueous solution, according to these parameters:
Operating concentration 10 - 50 g/l
Spray contact time 60” - 180”
Immersion contact time 120” - 300”
Operating temperature 20 – 50 °C
Operating conditions may vary depending on the result and the pretreatment system.
The Fiprokim technical service will provide, case by case, the optimal operating parameters.
It is recommended to use a demineralized water rinse before treatment with FIPROCOAT 9001.
We also recommend maintaining the conductivity of this rinse below 60 µS/cm.
Parametro | Valore |
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OPERATING PROCEDURE
Before carrying out the conversion, it is necessary to remove any contaminants from the surface of the parts to be treated, using alkaline degreasing baths, followed by several thorough rinses.
Prepare the bath using demineralized water and add from 10 to 50 Kg of FIPROCOAT 9001 for every 1000 liters of bath. Bring to operating temperature and homogenize for at least 15 minutes before treating the parts.
Then add from 15 to 25 kg of ALCAFIP 1051 to stabilize the pH of the working bath at values between 4.2 and 4.8.
After treatment with FIPROCOAT 9001, it is necessary to rinse the parts with clean water, preferably demineralized (overflow recommended), and a final step with deionized or demineralized water. Possibility of inserting FIPROPLUS 915 in step after conversion, to optimize paint adhesion.
Followed by drying at a temperature between 50 and 90°C.
Applicazione | Concentrazione |
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Bath control
To check the working bath points, proceed as follows:
Take 50 ml of the bath and transfer to an Erlenmeyer flask
Add 6 ÷ 7 drops of phenolphthalein indicator
Titrate with 0.1N NaOH; the milliliters of 0.1N NaOH consumed indicate the concentration of the working bath.
A bath prepared with 10 g/l of FIPROCOAT 9001 has a point value, without adjustment of pH, equal to 8,3 ml.
Adjusting the pH with ALCAFIP 1051 results in a point value to be redetermined during the start-up phase and maintained as a limit.
For greater bath management accuracy, it is also recommended to periodically determine the zirconium points by means of a complexometric titration of the solution under test.
Power supply
The correct bath replenishment will be determined by the Fiprokim technical service, also depending on the set overflow rate.
In any case, it is recommended to add 7 kg of FIPROCOAT 9001 for each missing zirconium point per 1000 liters of bath.
However, it is recommended to feed continuously, using overflow to reduce contaminants, and to feed based on the set pH.
Plant Design & Storage Guidelines
All parts in contact with FIPROCOAT 9001 must be made of materials resistant to fluorides and acidity.
AISI 316L stainless steel
Ebonite lining
PVC, polyethylene, polypropylene, polyfluorinated plastic coating.
The products must be stored at a temperature between 5 and 40 °C.
Key Features
Excellent pre-painting or pre-conversion treatment
Heavy metal-free
Chromium-free
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