Yellow Metal deactivators
Yellow metal deactivators have two main objectives:
- Protect copper and yellow metals (such as bronze or brass) against corrosion caused by atmospheric oxygen or by sulfur-containing compounds that may be present in a lubricant formulation.
- Passivate the copper surface: copper can act as a catalyst in many chemical reactions, particularly oxidation reactions. It is therefore essential to reduce the catalytic activity of copper ions in the oxidation process of base oils.
Description
The passivators offered by Lumar act by forming a protective layer on the metal surface, thereby reducing its reactivity and limiting premature lubricant degradation. They not only prevent corrosion but also neutralize catalytic effects that could accelerate the oxidation of base oils.
Available in different forms (oil-soluble or water-soluble), our metal deactivators can be easily incorporated into a wide range of industrial applications.
Among yellow metal passivators, we offer:
- Benzotriazole
- Tolyltriazole
- Sodium salts of tolyltriazole
- Tolyltriazole derivatives
- Water-soluble passivators
- Oil-soluble passivators
