Technical specifications
FIPROCOAT 9000 is a pre-paint 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.
Use and Applications
FIPROCOAT 9000 is applied both by spray and immersion, in aqueous solution.
Operating conditions may vary depending on the result and the pretreatment system.
Before carrying out the conversion, it is necessary to remove any contaminant 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 9000 for every 1000 liters of bath. Bring to operating temperature and homogenize for at least 15 minutes before treating the parts.
Then add from 3 to 25 kg of ALCAFIP 1051 until the pH of the working bath is stabilized at values between 4.2 and 4.8.
After treatment with FIPROCOAT 9000, it is necessary to rinse the parts with clean water, preferably demineralized (overflow recommended), followed by a final pass with deionized or demineralized water. Possibility of inserting FIPROPLUS 915 in step after conversion to optimize paint adhesion.
This is followed by drying at a temperature between 50 and 90°C.
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Bath control
To check the points of the working bath, proceed as follows:
Take 50 ml of the bath and transfer to a 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 30 g/l of FIPROCOAT 9000 has a point value, without adjustment of pH, equal to 4,3 ml.
Adjusting the pH with approx. 20 g/l of ALCAFIP 1051 results in a point value of approximately 10,0 ml.
For greater accuracy in bath management, it is also recommended to periodically determine the zirconium points by complexometric titration of the test solution.
Applicazione | Concentrazione |
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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 9000 for each missing zirconium point per 1000 liters of bath.
However, it is recommended to replenish continuously, using overflow to reduce contaminants, and to replenish based on the set pH.
Plant Design & Storage
All parts in contact with FIPROCOAT 9000 must be made of materials resistant to fluorides and acidity.
AISI 316L stainless steel
Ebonite lining
PVC, polyethylene, polypropylene, polyfluorinated plastic coating.
Products must be stored at a temperature between 5-40 °C.
Highlights
Excellent pre-painting or pre-conversion treatment
Chromium and metal-free
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