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Hefei Sunrise Aluminium Pigments Co.,Ltd
ADD：No. 18 Jinhu Rd., Shuangfeng Development Zone, Hefei, Anhui, China
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What are the factors that determine the quality of water-based aluminium paste?
What are the factors that determine the quality of water-based aluminium paste? China's scientific research capabilities are increasingly strong, and its international status is increasing year by year. "Made in China" has gradually become a new international standard. Sunrise Group is a high-tech enterprise specialized in the production of aluminium paste, with a high-level professional technical team. So, what are the factors that determine the quality of water-based aluminium paste? Let me answer this question for you!
To better understand this issue, we first need to understand what water-based aluminium paste is. Water-based aluminium paste, also known as water-based aluminium powder paste, has got widespread attention with the development of water-based coatings.
As aluminium is a lively amphoteric metal element, it reacts easily with water, acid, and alkali, releasing hydrogen gas and causing swelling. Currently, most water-based coatings on the market are weakly alkaline, and some coatings have a high acid value. The factors that determine the quality of water-based aluminium paste mainly include the production method, the strength of color and brightness, acid and alkali resistance, shear resistance, and storage period. Let's discuss the manufacturing process of water-based aluminium paste in detail.
1.Adding corrosion inhibitors and passivation with chromic acid, phosphoric acid, or salt dulling method
The advantage is low production cost, short cycle, and good product brightness, which greatly maintains the original color and brightness of solvent-based aluminium paste. The disadvantage is that it is not tightly coated has no coating layer, and the acid and alkali resistance of aluminium paste is weak, with a short storage period or even no storage period.
2.Inorganic silicon-coated method
The advantage is that it is closer to the original shade and brightness of solvent-based aluminium paste, with strong acid and alkali resistance and a relatively dense coating layer. The finished product can generally be stored for 6-12 months. The disadvantage is that the price is relatively high.
3.Inorganic-organic silica and polymer encapsulated or hybrid encapsulated method
The advantage is extremely strong acid and alkali resistance and shear resistance. The disadvantage is that the encapsulated process is complex, the cost is high, the cycle is long, and there is a large loss of color.
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