SurTec 650 is a high-quality process for the surface treatment of aluminium and aluminium alloys. It creates a thin, transparent to slightly iridescent protective layer on the aluminium surface. This protects components from corrosion and maintains their electrical conductivity.
The most important points
- Passivation of aluminium alloys
- Extremely thin protective layer, no change in dimensions
- Optimal base for subsequent processes such as painting or gluing
Examples of passivated precision components
Passivation expertise at Polymeca
Passivation coatings have very thin layers and are ideal as a base for subsequent coatings. Unlike anodised layers, they offer high conductivity with low surface resistance.
Despite the extremely thin layer, which is barely visible to the naked eye, our SurTec-650 coatings meet corrosion protection requirements according to MIL standards, as tested in the 336-hour salt spray test. The processes are RoHS and REACH compliant.
Facts about passivation
Quality assurance, analysis and environmental protection
Our coating processes guarantee precision, sustainability and reliability. Every component meets our specifications for dimensional accuracy and surface quality – from the first to the last part of a series.
To ensure this, we continuously monitor all process baths in our own analysis laboratory. Continuous monitoring and documentation of all process parameters ensure a reproducible coating quality that our customers can rely on.
Quality:
- ISO 9001:2015 certified
- Analytic laboratory
- Corrosion tests
Environmental protection:
- ISO 14001:2015 certified
- RoHS compliant processes
- REACH compliant processes
- Modern wastewater treatment
- Steadily growing sustainability
Clarify technical feasibility and suitability for series production
Frequently asked questions about passivation
Precision mechanics
Upon request, mechanical processing can be performed prior to surface treatment as a preliminary process step for the targeted, high-precision manufacturing of your components. With our core competencies in mechanical manufacturing, we meet your requirements for precision, quality and process reliability.
Further expertise in surface technology
Anodising
Electroplating
Powder Coating
Wet Painting


