Staining and passivation of alloyed anti-corrosion steels
Detailed description and justification of the performance of staining and passivation of alloyed anti-corrosion steels is described in the article that we published in several specialised magazines. You can read the article here.
Staining and passivation can be performed in our staining plant in Brno or at any client’s location or on assemblage site.
Staining and Passivation in our Staining Plant in Brno
Staining can be performed by dipping to the staining baths or by spraying. In the same way it is possible to perform the consequent passivation eventually de-greasing before staining.
The following tubes are available for staining by dipping into bath:
| width (mm) | level height (mm) | length (mm) | number |
|---|---|---|---|
| 1 900 | 2 500 | 10 000 | 1 tube |
| 1 500 | 2 300 | 10 000 | 1 tube |
| 1 000 | 1 000 | 10 000 | 2 tubes |
| 1 800 | 1 100 | 3 200 | 1 tube |
| 1 200 | 1 100 | 2 000 | 2 tubes |
and other smaller tubes for special standardised parts
Spraying is used for staining parts that cannot be stained by dipping due to their large dimensions or unsuitable shape. The gate dimensions set the limit – the gate is 4000 mm wide and 4200 mm high.
Handling during staining is arranged by two bridge cranes, each of them with loading capacity of 5000 kg.
Handling during parts loading is arranged by a bridge crane with loading capacity of 12500 kg and a high-lift truck with loading capacity of 3500 kg.
After staining, any form and way of packaging can be performed.
Staining and Passivation on Assemblage Site and at the Client
We perform the works on mobile staining work site, naturally with catching and liquidation of waste water. We hold all and any necessary licences, approvals, certifications and authorisations for work performance.
There does not exist any dimension or weight limitation for these works.
We also perform special de-greasing, staining and passivation of piping systems to oxygen cleanness and to the cleanness level for pharmaceutical industry.
It concerns mainly the following activities:
- staining by spraying the external and internal surfaces of vessels, tanks, technological units and equipment, piping, etc.
- staining by flushing of piping systems and small and poorly accessible internal surfaces
- staining of welds and re-staining of assemblage welds
We also perform special de-greasing, staining and passivation of internal surfaces of piping systems for the following purity levels:
- for oxygen purity
- for pharmaceutical industry purity (demi – water, injection water, pure water, steam, etc.)
- for standard purity








