Passivations for zinc

Passivations (based on trivalent chromium) protect zinc and zinc alloy coatings and improve the corrosion resistance of the coating systems. Different shades of colour (black, yellow, olive) are available for colour coding of the coated parts.

Passivations for zinc are used:

for all zinc-plated parts (alkaline, acidic or cyanidic zinc) in order to improve cathodic corrosion resistance (CRC).

Ddescription

Product / application

09004 Corrector PSV

Liquid additive used to remove zinc from passivations, thus increasing the service life of the passivating solution.

09042 Passivation SLOTOPAS ZNT 20

Produces a transparent, weakly bluish finish on zinc-nickel alloys. SLOTOPAS ZN T 20 is operated at room temperature.

09043 Thick Layer Passivation SLOTOPAS HK 10

Produces slightly iridescent conversion layers with excellent corrosion protection. Subsequent sealing gives a uniform transparent surface finish.

09045 Thin Layer Passivation SLOTOPAS Z 20 Blue

Produces bluish-violet conversion layers. Less sensitive towards temperature treatment.

09048 Thick Layer Passivation SLOTOPAS HK 20

Produces slightly iridescent conversion layers on zinc and zinc-iron. Reduces inside corrosion.  Subsequent sealing gives a uniform transparent surface finish.

09052 Passivation SLOTOPAS ZNT 40

Thin Layer Passivation for zinc-nickel alloys. Excellent corrosion protection. Free of flouride.

09056 Passivation SLOTOPAS ZNT 70

Single-component thinlayer passivation for zinc-nickel alloys.

09059 Passivation SLOTOPAS CF 1550

Black chromating for electro deposited Zn-Ni layers which form deep black, uniform surfaces.

09102 Yellow Passivation SLOTOPAS G 20

Intensive yellow passivation without any dye.

09106 Black Passivation SLOTOPAS Z 60

Black passivation at RT for alkaline zinc- and low alloyed zinc-iron layers.

09112 Passivation SLOTOPAS PF 1750

09116 Passivation SLOTOPAS ZNB 60

Cobalt-free passivation witch is used for passivation of electro deposited zinc-nickel alloy layers . It produces a blue, chromium(VI)-free passivation layer with good corrosion behaviour and is suitable for colour coding of articles.

09130 Passivation SLOTOPAS ZN 300

Produces dark conversion layers on zinc-nickel alloys. Gives a uniform black surface finish when followed by a sealant.

09133 Passivation SLOTOPAS Z 30 T

Passivation SLOTOPAS Z 30 T forms on every zinc plated surface an intensive bluish, chromium(VI)-free protection layer with extraordinary good corrosion behaviour.

09189 Passivation SLOTOPAS PF 1890

09197 Passivation SLOTOPAS PA 1970

09316 Black Passivation SLOTOPAS ZE 160

Produces black conversion layers on zinc-iron alloys .Subsequent sealing is recommended.

90044 Thin Layer Passivation SLOTOPAS Z 10 Blue

Corrosion resistance according to DIN EN ISO 9227, > 24 h also after heat treatment (120 °C / 24 h).