Introduction
Corrosion is a major concern for metal surfaces, leading to structural damage and costly repairs. The STOPCOR® method provides an advanced impressed current system for cathodic protection, effectively preventing corrosion without the need for an external power source or batteries. This innovative technology utilizes a sacrificial magnesium anode, naturally generating a protective current of over -1V.
How STOPCOR® Works
The STOPCOR® patented technology is a breakthrough in corrosion control, suitable for a wide range of metallic surfaces. It is ideal for applications such as:
- Plumbing systems
- Heating and cooling systems
- Industrial facilities
- Pipelines
- Bridges
- Large-scale building structures
Technical Information
Cathodic protection is one of the most effective methods to control corrosion. It is an electrochemical process that prevents the natural reaction (corrosion) of metals by introducing an electrochemical cell with a more powerful charge than the corrosion cell.
Impressed Current Mechanism
The STOPCOR® method operates using a naturally generated direct current (DC) from the sacrificial magnesium anode inside the self-contained device. This impressed current:
- Covers and protects metal surfaces with minimal sacrificial material loss
- Is compatible with various metals
- Ensures negative charging of the protected surface, reversing oxidation and promoting reduction
Performance Index for Magnesium Alloy Metals (High Potential)
| Metal | Potential (V) |
|---|---|
| Aluminium | 0.05 max |
| Zinc | 0.3 |
| Copper | 0.02 |
| Silicon | 0.05 max |
| Manganese | 0.5 – 1.5 |
| Iron | 0.03 max |
| Nickel | 0.002 max |
| Magnesium | Remainder |
| Others | 0.03 max |
Solution Potential & Output Capacity
- Solution Potential: 1.7V
- Output Capacity: 1230 amp-hours per kg
Metal Activity & Corrosion Resistance
The STOPCOR® method is designed to protect metals based on their activity level. The most active (least noble) metals, such as magnesium, zinc, and aluminum, are highly prone to corrosion, while less active (more noble) metals, such as silver and gold, are more resistant.
By using a sacrificial magnesium anode, STOPCOR® ensures that the protective current flows to the more active metals, preventing degradation and maintaining the integrity of the metallic surface.
Conclusion
The STOPCOR® method is an innovative and efficient solution for corrosion prevention in various industrial and commercial applications. By utilizing a self-generated impressed current, it offers long-lasting metal protection without requiring external power sources or frequent maintenance.
This breakthrough technology is ideal for safeguarding infrastructure, pipelines, and metallic equipment, ensuring durability, safety, and cost savings in the long run.