Technical specifications
FIPROPHOS 520 is a liquid phosphodegreasing agent designed for the pre-painting treatment of iron, aluminium and zinc articles for immersion or pressure lance applications.
FIPROPHOS 520 is used in industrial painting and performs a combined degreasing and phosphating action. In addition to being clean, the treated surfaces are covered with a thin amorphous layer of ferrous phosphate, blue/red in colour, which increases the metal's resistance to corrosion and provides excellent anchorage for subsequent painting.
Usage and Applications
FIPROPHOS 520 is used by immersion at concentrations between 4% and 6% at temperatures between 40 °C and 60 °C with contact times of not less than 2 to 3 minutes.
For use with a pressure lance, on the other hand, use the product at a concentration of 0.5% - 1% at temperatures above 50 °C.
In both cases, rinse and dry the parts thoroughly before painting.
To achieve good phosphating, the pH of the baths must be kept in a range between 3.5 and 5.0.
Parametro | Valore |
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Bathroom control
Withdrawal: 10 ml - Indicator: Phenolphthalein - Titrant: Caustic Soda 0.1 N
Gr/lt of FIPROPHOS 520 = ml consumed x 3.5
Applicazione | Concentrazione |
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Storage
Avoid shocks, improper handling of packages that may cause product spillage. Protect from frost, store away from heat sources, keep containers tightly closed.
