Copper Anti-Tarnish Agent

As a professional supplier of electroplating-related products, we at Alfa Chemistry specialize in offering a wide range of surface treatment solutions for various base materials. One of our flagship products is the copper anti-tarnish agent (product code: ACEP-PRE-023), designed to provide superior oxidation resistance for copper surfaces, ensuring long-lasting performance and visual appeal. Engineered with non-toxic, biodegradable heterocyclic organic compounds, this formulation is free from chromium, nitrites, and other hazardous substances, fully complying with RoHS and global environmental standards.

Technical Specifications

Key Advantages

• Rapid Protection: It Forms a high-performance passivation layer in just 3-5 minutes, optimizing production efficiency.
• Long-Term Anti-Tarnish Performance: It ensures >1 year of indoor protection for copper parts without discoloration.
• Water-Based & Eco-Safe: Non-corrosive, non-toxic, and biodegradable, meeting strict environmental regulations.
• Cost-Efficient: 30-50 m² coverage per kilogram, reducing operational expenses.
• Preserves Functional Properties: It maintains electrical conductivity and solderability without compromising performance.
• Easy Application: Suitable for immersion treatment at room temperature or mild heating (up to 55°C).

Recommended Usage

• Pre-Cleaning: Degrease and remove oxides via acid pickling or alkaline cleaning. Rinse thoroughly.
• Passivation Treatment: Immerse copper parts in ACEP-PRE-023 at RT-55°C for 3-5 min.
• Rinsing & Drying: Rinse with water, then dry using air blow, centrifugal drying, or low-temperature oven (<80°C).
• Optional Dilution: For inter-process protection, dilute with DI water (1:1-2 ratio) to reduce costs.

Precautions:

• Ensure that all pre-treatment processes such as cleaning or acid pickling are completed effectively before applying the anti-tarnish agent.
• Be cautious with drying temperatures. Avoid excessive heat to preserve the quality of the passivation film.

Use Effect Chart

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