Wide Temperature Color Nickel-Free Sealer LX-C6629

Wide Temperature Color Nickel-Free Sealer LX-C6629 

Product Overview

Wide Temperature Color Nickel-Free Sealer LX-C6629 is a light yellow semi-transparent liquid. It is carefully formulated from a blend of metal salts, complexing agents, buffering agents, stabilizers, penetrating agents, ash suppression agents, dispersants, surfactants, and other components. This product is specifically designed for sealing anodic oxide films on aluminum and aluminum alloys, including colored oxide films. After treatment, the surface achieves a smooth feel. The sealer truly enables wide-temperature, nickel-free, and fluoride-free sealing operations.

Key Features

This sealer is completely free of heavy metals including nickel, cobalt, lead, chromium, and cadmium, fully meeting environmental protection requirements. It completely solves the problems associated with nickel, including health hazards to workers, environmental pollution, and contamination of aluminum alloys.

A major advantage of this product is the ability to select the operating temperature according to different quality requirements. The higher the temperature, the better the sealing quality. This flexibility reduces waste from replacing bath tanks due to changing requirements.

Within the normal working range, the sealer offers fast sealing speed, low consumption, and strong resistance to impurities. After sealing, the processed profiles exhibit increased oxide film hardness, enhanced brightness, and strong corrosion resistance.

The product also has an excellent fixing effect on pigments and colors in aluminum anodic oxide films. It effectively closes the pores of aluminum and aluminum alloy anodic oxidation color films, improves the hardness, brightness, and corrosion resistance of the oxide film, and gives the treated material surface a smooth feel with no frost, no water marks, and good abrasion resistance.

Main Technical Parameters

The recommended process parameters for LX-C6629 are as follows. The concentration of the sealer should be maintained at 4 to 6 grams per liter, with the balance made up of deionized water. The operating temperature ranges from 25°C to 95°C. The pH value should be kept between 4.8 and 5.8. The sealing time is calculated at a rate of 1.0 to 1.5 minutes per micrometer of oxide film thickness, and should be reasonably adjusted according to the actual film thickness.

Bath Liquid Maintenance

Proper bath maintenance is essential for consistent performance. The amount of sealant added should be determined based on laboratory analysis results of the bath liquid. During the production process, the pH value should be strictly controlled between 4.5 and 5.5. If the pH value is too high, dilute acetic acid can be used to adjust it downward. If the pH value is too low, sodium acetate or dilute ammonia can be used to adjust it upward.

Precautions

Several precautions should be observed when using this product. Wide Temperature Color Nickel-Free Sealer LX-C6629 is a weakly acidic agent, so contact with alkaline substances should be avoided. The product is hygroscopic and will absorb moisture from the air. In regions with low winter temperatures, the bath liquid temperature should not fall below 20°C; otherwise, the sealing speed becomes too slow, affecting production efficiency.

Packaging, Storage, and Transportation

The product is packaged in 25 kilogram plastic drums. During storage and transportation, it must be protected from heat and moisture.

Applications

The regulation of concentration, temperature, time, and pH during the use of LX-C6629 has a significant impact on the sealing effect. This sealer is ideal for any application requiring high-quality sealing of anodized aluminum, particularly colored parts. It is widely used in architectural applications such as window frames, curtain walls, and handrails, as well as automotive trim components, electronic device casings, household appliances, and consumer goods where surface quality, color retention, and corrosion resistance are critical.

Summary

Wide Temperature Color Nickel-Free Sealer LX-C6629 has an excellent fixing effect on the pigment colors of aluminum anodic oxidation films. It effectively closes the pores of aluminum and aluminum alloy anodic oxidation color films, improves the hardness, brightness, and corrosion resistance of the oxide film, and gives the treated material surface a smooth feel with no frost, no water marks, and good abrasion resistance. With its nickel-free and heavy metal-free composition, wide operating temperature range from 25°C to 95°C, fast sealing speed of 1.0 to 1.5 minutes per micrometer, and ability to produce a smooth, frost-free, water mark-free finish with good abrasion resistance, LX-C6629 is a modern, environmentally responsible solution for sealing anodic oxide films on aluminum and aluminum alloys.