Kempas TRH 280
NEUTRAL SALT SPRAY OBSERVATION – 5% WHITE RUST
Alkaline Non Cyanide Zinc Plated Component
- Greenish iridescent yellow, Trivalent Chromate Passivation
- Provides darker colour in alkaline Zinc and Zinc alloys.
- Operates at elevated temperatures.
- Under optimum conditions, thickness is about 300 nm.
- Neutral Salt spray withstands more than 100 hrs. (white rust)
OPERATING CONDITIONS
Kempas TRH-280
|
100 – 120 cc/l.
|
| Solution pH (electrometric) |
1.8 – 2.3
|
| Solution Temperature |
60 – 800C. |
Immersion Time
|
60 – 90 seconds.
|
CORROSION RESISTANCE TO NEUTRAL SALT SPRAY TEST WITH 5% WHITE RUST
Thickness : 8 microns minimum.
Sr. No.
|
Zinc Planting System
|
No. of Hours
|
No. of Hours with Sealant & Topcoat
|
Hexavalant
Yellow
|
Trivalent
Yellow
|
Hexavalant
Yellow |
Trivalent
Yellow |
1.
|
Chloride Zinc
|
85-95
|
85-95
|
130-140
|
130-140
|
2.
|
Alkaline non cyanide Zinc
|
96-110
|
100-110
|
150-160
|
150-170
|
3.
|
Zinc-Cobalt
|
200-250
|
120-130
|
280-320
|
160-180
|
4.
|
Zinc-Iron
|
150-200
|
90-110
|
200-250
|
150-170
|
|
