Technical features
FIPROCOAT 9001 is a product for the pre-painting treatment, free of chromium and heavy metals, used to produce a blue color conversion on iron, a colorless to iridescent conversion on aluminum and galvanized. The resulting coating layer has excellent anchoring properties for the paint and provides good corrosion protection. To be used in lines subject to flash rust.
Usage and Applications
FIPROCOAT 9001 is applied both by spray and by immersion, in aqueous solution, according to these parameters:
Concentration of use 10 - 50 g / l
Spray contact time 60 "- 180"
Contact time immersion 120 "- 300"
Operating temperature 20 - 50 ° C
Operating conditions may vary depending on the result and the pre-treatment system.
The Fiprokim technical service will provide, from time to time, the optimal operating parameters.
It is recommended to use a rinse in demineralized water before treatment with FIPROCOAT 9001.
We also recommend keeping the conductivity of this rinse below 60 µS / cm.
Parametro | Valore |
|---|
Operating procedure
Before carrying out the conversion, it is necessary to eliminate any pollutant from the surface of the pieces to be treated, using alkaline degreasing baths, followed by more accurate rinses.
Prepare the bath using demineralized water and add 10 to 50 kg of FIPROCOAT 9001 for every 1000 liters of bath. Bring to working temperature and homogenize at least 15 minutes before treating the pieces.
Then add from 15 to 25 kg of ALCAFIP 1051 until the pH of the working bath stabilizes for values between 4.2 and 4.8.
After the treatment with FIPROCOAT 9001, it is necessary to rinse the pieces with clean water, preferably demineralized (overflow appreciated) and final passage with deionized or demineralized water. Possibility of inserting FIPROPLUS 915 in steps after conversion, to optimize the adhesion of the paint.
Drying with a temperature between 50 and 90 ° C follows.
Applicazione | Concentrazione |
|---|
Control of bathing
To check the working bath score, proceed as follows:
Take 50 ml of bath and transfer it 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 score, without pH adjustment, of 8.3 ml.
By adjusting the pH with ALCAFIP 1051 there is a score to be re-determined in the start-up phase and to be kept as a limit.
For greater management accuracy of the bath, it is also advisable to periodically determine the zirconium points by means of a complexometric titration of the solution under examination.
Alimentation
The correct supply of the bath will be determined by the Fiprokim technical service also according to the set overflow quantity.
In any case, it is recommended to introduce 7 kg of FIPROCOAT 9001 for each missing zirconium point per 1000 liters of bath.
However, it is advisable to feed continuously, using overflow to reduce pollutants and to feed according to the set pH.
Plant engineering and storage measures
All parts in contact with FIPROCOAT 9001 must be made of material resistant to fluorides and acidity.
AISI 316L stainless steel
Ebonizing
Coating in PVC, polyethylene, polypropylene, polyfluorated plastics.
The products must be stored at a temperature between 5-40 ° C.
Highlights
Excellent pre-painting or pre-conversion treatment
Free of heavy metals
Chromium free
UN PO' DI NOI
