Views: 0 Author: Site Editor Publish Time: 2025-05-29 Origin: Site
In the field of coatings, aluminum silver paste, as a representative of metallic pigments, has always been the focus of formulators and buyers due to its unique performance and wide range of applications. Shandong Silver Arrow, as an industry leader, not only excels in the field of traditional oil-based non-leafing aluminum pastes, but also launches a series of new products by virtue of its innovative technology to lead the industry in the wave of water-based transformation.
Product Matrix: Aluminum Pigment Solutions to Meet Multiple Needs
Shandong Silver Arrow's product line is rich and diverse, covering resin-coated aluminum pastes, water-based aluminum pastes, colored aluminum pastes, illusion silver pastes, electroplated silver and other types. These products are optimized for different coating systems and application scenarios, and can meet the individual needs of automotive body coatings, interior and exterior coatings, plastic paints, coil paints, general industrial paints and other fields.
Water-based Trend: Technical Innovation Driven by Environmental Policy
With the increasingly stringent environmental protection policy and the enhancement of consumer awareness of environmental protection, water-based coatings have gradually become the mainstream of the market. However, the traditional aluminum pigment without water-based treatment is prone to react and produce gas in the water-based system, which affects the coating performance and construction effect. For this reason, Shandong Silver Arrow adopts silica coating technology to create a stable protective layer for aluminum silver paste, which significantly improves its adaptability in the water-based system. Compared with the traditional passivation treatment, this technical route shows more excellent stability and environmental performance, and has won the recognition and trust of more and more coating customers.
Passivation process: a key step to create stable aluminum silver paste
Passivation process is an important part of the aqueous treatment of aluminum silver paste, the process is as follows:
1. Put in solvent-based aluminum silver paste, use amphoteric solvents (such as alcohol ether, alcohol) for dilution and mixing, this step can quickly improve the agglomeration of aluminum silver paste, so that it is more evenly dispersed.
2. in the continuous mixing process, slowly add pre-diluted acidic polymers (such as epoxy phosphate, polyester phosphate, etc.), these polymers can be chemically reacted with the surface of the aluminum paste, the formation of a passivation layer, effectively preventing the aluminum paste and the aqueous system of components in the adverse reaction.
3. Maintain the stirring reaction for a certain period of time to ensure that the passivation layer evenly and densely covered on the surface of aluminum silver paste, to fully realize its stabilization effect.
4. After the completion of the reaction, let the mixture naturally precipitate, pour out the surface clear liquid, this step can not only reduce the original aluminum silver paste in the non-water solvent content, but also effectively remove the passivation process of black slag and other impurities, and further improve product quality.
5. Finally add wetting agent and mix well, the addition of wetting agent can adjust the hydrophilic and lipophilic balance of aluminum silver paste, so that it can be better dispersed when added to the water-based coatings, to avoid problems caused by the bias of oleophilic mixing does not open, to ensure that the uniformity and stability of the coating system.
Precautions for use: essential guide to ensure the performance of coatings
When using passivated aluminum silver paste, in order to ensure the coating performance and construction effect, the following points should be noted:
1. Timing of adding: Aluminum silver paste should be added at the last stage of the paint making process to avoid destroying the passivation layer of the paste during the high-speed mixing or grinding process in the early stage, which will lead to paint film malpractice and affect the appearance and performance of the final product.
2. Stirring method: low-shear stirring method must be adopted, and it is forbidden to use high-shear equipment such as dispersing disk, so as not to damage the structure and performance of aluminum silver paste, and to ensure that the aluminum silver paste can be uniformly dispersed in the paint and maintain its unique metallic luster and covering power.
3. pH value control: the pH value of the coating should be controlled at about 7-8, acidic environment and strong alkaline environment may affect the stability of passivated aluminum silver paste, resulting in its deterioration or reaction, affecting the storage stability of the coating and construction performance.
4. Shelf life management: usually passivated aluminum silver paste paint shelf life is relatively short, generally up to 2 years. Excessive storage time may lead to aluminum silver paste particles, blackening and other ills, so in the use of the process should be a reasonable arrangement of inventory, follow the principle of first-in-first-out to ensure product quality stability.
5. Flatulence monitoring: As aluminum silver paste in the water-based system there may still be a certain risk of gas generation, so in the process of coating storage and use, we should regularly check the container's flatulence, timely detection and elimination of hidden dangers, to avoid flatulence leading to packaging rupture or construction safety hazards.
Conclusion: Hand in hand with Shandong Silver Arrow, drawing a new future of water-based coatings!
Shandong Silver Arrow provides high-quality and diversified aluminum pigment solutions for the coating industry with its professional technology and rich experience in the field of aluminum silver paste. In the wave of water-based transformation, its innovative silica coating treatment technology and mature passivation process have solved key problems for coating enterprises. Choosing Shandong Silver Arrow's aluminum silver paste products can not only enhance the performance and competitiveness of coatings, but also comply with the trend of environmental protection and win the market opportunity. Let's join hands with Shandong Silver Arrow to draw a better blueprint for the water-based coating industry and contribute to sustainable development.