Ht Anti-Tarnish for Copper

INTRODUCTION

It is a water-based liquid specially designed for copper and its alloy and is a product of nano-technology. A thin colorless and transparent film formed on the surface with a thickness of several nanometers. In addition, it prevents the substrate from being corroded by water, seawater, gas, oxygen, hydrogen sulfide, sulfur dioxide, and part of the organic vapor erosion of the workpiece. It is mainly used for the protection of copper and its alloy in an indoor environment.

• Water-soluble processes, safe and environmentally friendly.

• Simple operation. An effective and protective film can be formed on the surface by immersing the thoroughly cleaned workpiece in the working fluid.

• The film does not affect welding performance and contact resistance, which is suitable for the protection of electronic components and circuit boards.

• The film fails to resist corrosion from ammonia or cyanogen.

• The film can be baked at 150-200℃ for 0.5-1h, the protective performance will not decrease.

• Large area processing capacity, at least 15-20 square meters per liter, even up to 35 square meters/l under optimal conditions.

• The acetic acid system is more stable and less corrosive than other systems containing formic acid.

• Conform to EU ROHS environmental standards.

EQUIPMENT

Tank: stainless steel, glass, rubber lined or polypropylene lined.

Heat system: quartz heating pipe, ceramic heating pipe, stainless steel heating pipe and thermostatic water bath.

Parts can be carried by basket, barrel or rack.

ANALYSIS AND CONTROL

To ensure the best bath effect, the effective concentration, pH value, film thickness and micro-etching depth must be controlled within the effective range.

SOLUTION MAINTENANCE

To prevent copper, oil, wax, alkali and acid washing from polluting the bath, otherwise the performance of the bath will be weakened.

During the operation, the loss of the bath from its breakdown and drag-outs. Bath supplements should be added by analysis, 20 ml/l each time. If the iridescent color of the workpiece occurs, please add (1:1) ammonia to adjust the pH value, or increase the temperature.

STRIPPING SOLUTION

The stripping solution is made by adding 5% of acetic acid or hydrochloric acid to alcohol, the parts with film are immersed for 3 minutes in the bath or electrolysis in electrolysed degreasing.

SAFETY AND ENVIRONMENTAL

HT copper anti-tarnish concentrate should prevent from skin and eye contact. If so, rinse with water immediately and seek medical help if necessary.

A Material Safety Data Sheet (MSDS) includes product safety instructions and environmental protection instructions. Read and review the MSDS for appropriate health and safety warning before use.

WARRANTY

1. We provide guarantee for product quality under the valid law.

2. The quality of the product after reprocessing or repackaging by customer is not included in the guarantee.

3. Please feel free to contact us if you have any questions or issues about the products, we are ready to answer at any time.

COLOR & PACKAGING

HT copper anti-tarnish concentrate is a light blue acidic liquid with plastic barrel packaging. The packaging specification is 25 kg/pcs.

?IMPORTANT NOTICE REGARDING THIS INSTRUCTION BOOK

The product information and recommendations contained in this document are based on our experimental theory and data. Due to the particularity of the surface processing, further as the actual use of our products by others is beyond our control, NO GUARANTEE of any kind is made as to the effects of such use, and NO RESPONSIBLE for any consequences. Also, all the information in this document cannot be used as evidence of copyright infringement.