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DongtaiSY-331 High-Corrosion-Resistant (Organic) Sealer
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Product Description
SY-331 high‑corrosion‑resistant (organic) sealer is a liquid dispersion of organic polymers, containing silica and nonionic surfactants, and free of chromates; it is a colorless liquid. It forms a dense protective film on metal conversion coatings and electroplated surfaces, providing exceptional corrosion resistance and discoloration prevention, while being easy to use and simple to handle. It is suitable for aluminum anodized films, chemical conversion coatings, and various protective plating layers, such as trivalent blue‑white passivation, non‑hexavalent yellow multicolor passivation, and trivalent black passivation; it can also be used for hexavalent yellow multicolor passivation and olive‑green passivation. The product creates a transparent organic anti‑corrosion protective layer and enhances the performance of various passivation films in neutral salt spray tests, delivering 100–200 hours of protection.
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