Copper Corrosion Inhibitor is a special passivation additive designed to protect copper, brass, and other non-ferrous alloys. Especially suitable for machining copper and brass components, it effectively prevents the surface staining and discoloration of machined parts caused by sulfur-containing extreme-pressure agents in metalworking fluid systems.

Key Features & Compatibility:
• Excellent Solubility: Exhibits good solubility in mineral base oils, ensuring uniform distribution in the formulation.
• Synergistic Performance: Can be compounded with sulfur-based EP (extreme-pressure) additives to effectively reduce copper corrosion risk.
• Stable Operation: Maintains stable performance under typical high-demand metalworking operating conditions.
• Broad Compatibility: Good compatibility with common rust inhibitors and anti‑wear additives.