ZnFe
GC PASS 600/650/670
Transparent and black passivations on zinc-iron
HILLEBRAND CHEMICALS
a whw company
GC PASS 600
Transparent protection on zinc-iron layers for rack and barrel plating
A wide range of passivations meet various requirements. GC PASS passivations provide silver, transparent,
blue, yellow or black coatings on zinc and zinc alloys, depending on desired appearance or corrosion resistance requirement.
GC PASS 600 is a chrome-VI-free, transparent passivation on zinc-iron coatings with an incorporation rate of
iron of 0.5 – 0.7 %.
The transparent, weakly iridescent surfaces provide excellent corrosion resistance and subsequent application of a top coat such as GC TOP 120 or GC TOP 471 produces a perfect and consistent appearance.
GC PASS 600 can be used for rack and barrel plating and is easy to analyse.
Product
GC PASS 600 Part 1
GC PASS 600 Part 2
Make-up
in
L/100 L
Make-up
in
kg/100 L
15
0.3
pH
from to
Temperature in
°C
Time
in
seconds
Max. foreign
metal content
in in g/L
1.6 - 2.2
40 - 55
40 - 60
Zn: 15, Fe: 0.15
GC PASS 650
Black protection on zinc-iron layers for barrel plating
GC PASS 650 is a chrome-VI-free, transparent black passivation on zinc-iron coatings with an incorporation rate
of iron of 0.5 – 0.7 %.
The passivation is cobalt-free and provides black, slightly iridescent surfaces with excellent corrosion resistance.
Subsequently applied GC TOP sealing produce a consistent black appearance.
GC PASS 650 can only be used for barrel plating and is easy to analyse.
Product
GC PASS 650
GC PASS 651 Additive Solution
Make-up
in
L/100 L
pH
from to
Temperature
in °C
Time
in
seconds
Max. foreign
metal content
in in g/L
15
1.8 - 2.2
20 - 30
40 - 90
Zn: 15, Fe: 0.15
0.11
GC PASS 670
Black protection on zinc-iron layers for rack plating
GC PASS 670 is a chrome-VI-free, transparent black passivation on zinc-iron coatings with an incorporation
rate of iron of 0.5 – 0.7 %.
The passivation contains cobalt and provides black, slightly iridescent surfaces with excellent corrosion resistance. Subsequently applied sealing, such as GC TOP 427, produce a consistent black appearance.
GC PASS 670 can only be used for rack plating and is easy to analyse.
Product
Make-up
in
L/100 L
pH
from to
Temperature
in °C
Time
in
seconds
Max. foreign
metal content
in in g/L
GC PASS 670 Part 1
5
1.8 - 2.2
30 - 40
45 - 75
Zn: 15, Fe: 0.08
GC PASS 670 Part 2
2
HILLEBRAND CHEMICALS
a whw company
Hillebrand Chemicals GmbH I Westerhaar 29 I 58739 Wickede (Ruhr)
Tel. +49 (0) 23 77 / 78 70 250 I Fax +49 (0) 23 77 / 78 70 270
www.hillebrand-chemicals.de I kont [email protected]