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Product Name	Appearance	Active Content (%)	Solvent	Applications & Features
DS-112 Dispersant	Light Brown Liquid	60	PMA/NBA	Polymer block copolymer with excellent compatibility with various resins. Versatile with outstanding dispersing ability, effectively reduces grinding time. Recommended dosage: 1.5-6% based on total inorganic pigments; 10-50% based on total organic pigments (similar to BYK 4010).
DS-116 Dispersant	Light Brown Liquid	100	/	Polymer unsaturated carboxylic acid polymer with low surface tension and strong wetting properties. Effectively prevents pigment floating and mottling during grinding, reduces viscosity, improves coating flexibility and hydrophobicity. Recommended dosage: 0.2-2.0% based on total amount or 30-60% based on carbon black (similar to BYK-104S).
DS-119 Dispersant	Light Brown Liquid	100	/	Bifunctional high molecular block polymer, low surface tension, strong wettability, low acid value, can effectively prevent the pigment from floating and blooming during co-grinding, good viscosity reduction effect, excellent overall performance, high cost performance, 30-60% of the carbon black content, 0.2-2.0% of the total, similar to EFKA-4010.
DS-201 Leveling Agent	Transparent Liquid	97	BCS	Polyether-modified silicone, suitable for both water and oil systems. Effectively reduces surface tension, fast leveling speed, dry smooth hand feel, good compatibility. Applicable to PU, UV, and waterborne coatings. Recommended dosage: 0.2-1% (similar to BYK-333).
DS-202 Leveling Agent	Transparent Liquid	50-52	BCS/BAC	Acrylic ester-based leveling agent with excellent compatibility and recoatability. Provides defoaming and foam suppression, significantly improves leveling and flexibility of coatings. Recommended dosage: 0.3-1% (similar to BYK-358N).
DS-203 Leveling Agent	Transparent Liquid	＞70	BCS/PMA	Fluorine-modified polyacrylate has excellent compatibility and recoatability, has a strong leveling effect, can effectively prevent shrinkage, pinholes, prickly heat, fish eyes, etc., can give the coating better gloss and fullness, improve the weather resistance of the coating, the recommended addition amount is 0.3-1%
DS-206 Leveling Agent	Transparent Liquid	＞13	BCS/BAC	Polyether modified siloxane has good degassing properties, effectively reduces surface tension, has good compatibility, is suitable for single-component and PU coatings, and the recommended addition amount is 0.2-1%.
DS-207 Leveling Agent	Transparent Liquid	＞26	BCS/PMA	Polyester-modified silicone with excellent high-temperature resistance. Good recoatability and compatibility, suitable for various coatings. Recommended dosage: 0.1-0.5% (similar to BYK-310).
DS-209 Leveling Agent	Transparent Liquid	＞25	BCS/PMA	Acrylic-modified silicone with broad applicability. Effectively improves coating gloss and intercoat adhesion. Suitable for single- and two-component systems and high-temperature amino baking coatings. Recommended dosage: 0.2-1% (similar to BYK-310/BYK-388).
DS-210 Leveling Agent	Transparent Liquid	50-52	BCS/BAC	Polymer acrylic leveling agent with defoaming and foam suppression abilities. Prevents pinholes, shrinkage cavities, and blistering. Significantly improves leveling and flexibility of solid color topcoats. Recommended dosage: 0.3-1% (similar to BYK-354).
DS-245 Leveling Agent	Transparent Liquid	＞97	/	Polysiloxane leveling agent with strong substrate wetting properties. Improves flow, transparency in clear coats, enhances slip, and provides anti-shrinkage, anti-blocking, and release effects. Good recoatability and minimal impact on intercoat adhesion. Recommended dosage: 0.05-1% (similar to Degussa 450).
DS-300 Adhesion Promoter	Light Yellow Transparent Liquid	＞65	XL	Polyester-modified polymer that significantly improves adhesion to various colored metals such as aluminum, aluminum alloys, copper alloys, stainless steel, and vacuum metallized substrates. Also enhances coating weatherability and impact resistance. Mainly used in high-temperature coatings with temperature resistance up to 280°C.
DS-310 Adhesion Promoter	Light Yellow Transparent Liquid	＞65	XL	Special functional group modified polyester that effectively improves adhesion to various colored metals (aluminum, aluminum alloys, copper alloys, stainless steel, vacuum metallized substrates) and inorganic substrates like glass and ceramics. Significantly enhances salt spray resistance of coatings.
DS-320 Adhesion Promoter	Light Yellow Transparent Liquid	＞20	Toluene / Xylene	Suitable as a primer for spray coating on various PP substrates. Can also be added directly to standard acrylic resins for coatings on PP substrates, providing good adhesion. Also shows good adhesion on some PE substrates and significantly improves adhesion when added to PA nylon inks.
DS-360K Adhesion Promoter	Light Yellow Transparent Liquid	100	/	Polymer that significantly improves adhesion on various inorganic substrates such as glass, ceramics, PET, nylon, and other difficult-to-bond plastics. Also effectively improves adhesion on various colored metal coatings. Enhances coating water, acid, and alkali resistance. Suitable for PU and high-temperature baking systems. Modified polysiloxane with excellent defoaming, foam suppression, and bubble elimination effects. Particularly effective in PU thick coatings to reduce bubbles and prevent pinholes. Recommended dosage: 0.05-1.0%. Suitable for heavy-duty anti-corrosion and self-leveling coatings (similar to Degussa 6800). Modified silicone that effectively reduces coating surface tension with excellent foam suppression and elimination. Eliminates defects such as shrinkage cavities, fisheyes, and volcano defects. Good compatibility, preferred for clear coats. Recommended dosage: 0.1-1.0%. High-elasticity polyurethane compatible with various resins. Significantly improves coating flexibility, elongation, and impact resistance. Enhances adhesion to substrates such as PET, TPU, EVA, and PC, and improves intercoat adhesion between two layers. Polyester-modified polysiloxane with good compatibility and leveling properties. Significantly improves coating hardness, scratch resistance, wear resistance, and provides excellent anti-graffiti performance. Recommended dosage: 0.3-0.8%.
DS-401 Defoamer	Transparent Liquid	＞50	/	Modified polysiloxane has excellent compatibility and can effectively eliminate fisheyes and pinholes on the coating surface. It is particularly suitable for use in high temperature and high humidity environments and is applicable to all types of solvent-based coatings, with a total dosage of 0.2-1.0%.
DS-402 Defoamer	Translucent Liquid	98	/	Modified polysiloxane with excellent defoaming, foam suppression, and bubble elimination effects. Particularly effective in PU thick coatings to reduce bubbles and prevent pinholes. Recommended dosage: 0.05-1.0%. Suitable for heavy-duty anti-corrosion and self-leveling coatings (similar to Degussa 6800).
DS-403 Defoamer	Transparent Liquid	1.5	Aromatic / Ketone / Ester Solvents	Modified silicone that effectively reduces coating surface tension with excellent foam suppression and elimination. Eliminates defects such as shrinkage cavities, fisheyes, and volcano defects. Good compatibility, preferred for clear coats. Recommended dosage: 0.1-1.0%.
DS-501 Flexibilizer	Light Yellow Transparent Liquid	30	Ethyl Acetate	High-elasticity polyurethane compatible with various resins. Significantly improves coating flexibility, elongation, and impact resistance. Enhances adhesion to substrates such as PET, TPU, EVA, and PC, and improves intercoat adhesion between two layers.
DS-515 catalyst	Transparent Liquid	＞24	PMA	A non-toxic metal ion complex, can be used as a catalyst for PU two-component coatings, shortening the actual drying time and increasing the crosslinking density. It can also be used as a crosslinking catalyst for amino baking varnishes, reducing the baking temperature or shortening the crosslinking time, preventing the coating from yellowing due to prolonged baking, and improving the coating's impact strength. Addition amount in PU coatings: 0.2-0.5%; in amino baking varnish systems: 1-2.5%.
DS-601 Hardeners	Light Yellow Transparent Liquid	100	/	Polyester-modified polysiloxane with good compatibility and leveling properties. Significantly improves coating hardness, scratch resistance, wear resistance, and provides excellent anti-graffiti performance. Recommended dosage: 0.3-0.8%.