JY-269L Rust Preventive Coating for Copper

Eco-Friendly Composition: Comprising no toxic and harmful substances such as chromates, fluorides, peroxides, and heavy metals. It has no waste gas, waste water, and waste residue emissions, making it an environmentally friendly choice that causes no pollution to the environment.

Outstanding Protection Effect: It is highly effective in preventing brass from changing color, developing fingerprints, and showing streaks. It can maintain the original luster of brass and copper alloys and passes a salt spray (NSS) test for over 20 hours, ensuring long-term protection.

No Impact on Workpiece Properties: Does not interfere with the electroplating efficiency and welding performance of the workpiece. It allows normal processing operations while providing surface protection.

High Treatment Capacity: With a treatment area of 10 - 20 square meters per kg of the protective agent (depending on the actual situation), it offers efficient protection for a relatively large surface area.

Convenient Film Removal: The protective film can be easily removed by soaking in weak acid, providing convenience for subsequent processing or surface modification.

Antique Restoration: In the field of antique restoration, Product J is invaluable for protecting the copper components of antique items. It safeguards the original appearance of brass and copper alloy parts, preventing any further deterioration or discoloration, thus preserving the historical and aesthetic value of the antiques.

Architectural Decoration: For copper elements in architectural decoration, such as copper roofing, facades, and decorative fixtures, this product ensures long-lasting beauty. It shields the copper surfaces from environmental factors like air pollutants and moisture, maintaining the intended visual impact and durability of the architectural features.

Electronics Manufacturing: Within the electronics manufacturing industry, where copper is widely used in connectors and circuitry, Product J provides a reliable means of protection. It prevents oxidation and corrosion during the manufacturing process and storage, ensuring the integrity and conductivity of copper components, which is crucial for the proper functioning of electronic devices.

Jewelry Making: In jewelry production, especially for brass and copper alloy jewelry, this protection agent helps retain the shine and color of the pieces. It keeps the jewelry looking new and attractive, enhancing its marketability and customer satisfaction.

Degreasing and de-oxidizing: degreasing and dewaxing → rinsing → rinsing → de-oxidizing film (1% sulfuric acid) - (antioxidant treatment) → rinsing → rinsing in pure water.

Copper protection treatment:

· The use of proportion according to the need to protect the length of time, concentrated solution can be diluted 20-60 times use

· Temperature: 25℃-40°C

· Processing time: 60-180 seconds

· Stirring: uniform mechanical stirring

· Working equipment: stainless steel, glass, polypropylene, polyethylene and other materials, storage equipment

· New liquid replacement: when the surface of the workpiece water film rupture phenomenon, solution contamination, the need for a new allocation of protective fluid

Note: the operation of the workpiece must be clean, do not bring in copper, iron and other metal ions to the working fluid, otherwise the effect is reduced. In addition, the workpiece after copper protection treatment, not bare hand contact, so as to avoid hand sweat pollution rust.

Pure water rinsing → pure water rinsing.

Blow dry or dry (60-70℃) → Inspection → Packing.