The 7422 Water-based substrate wetting agent is a high-performance, polyether-modified siloxane surfactant engineered specifically for demanding aqueous formulations. This specialized additive serv…
Extreme Surface Tension Reduction: Drastically lowers aqueous surface energy, ensuring complete wetting on hydrophobic or contaminated substrates.
Superior Anti-Crater Performance: Effectively prevents surface defects such as craters, fish-eyes, and crawling, even at very low dosage levels.
Enhanced Substrate Penetration: Facilitates deep penetration into porous surfaces, improving the mechanical anchoring and long-term adhesion of the coating.
Excellent Recoatability: Maintains critical inter-coat adhesion, allowing for multiple layer applications without surface tension interference.
Low Foam Profile: Unlike traditional surfactants, 7422 provides powerful wetting without excessive foam generation, simplifying manufacturing and high-speed industrial application processes.
规格
技术亮点
Chemical Composition: Polyether-modified siloxane copolymer designed for optimal equilibrium and dynamic surface tension reduction in water-borne systems.
Active Content: High concentration (typically 100%), ensuring maximum efficiency and reduced shipping costs compared to diluted alternatives.
Solubility: Fully soluble in water and polar organic solvents, providing versatility across diverse solvent-borne and aqueous formulations.
Dynamic Performance: Rapid migration kinetics enable effective wetting during high-speed application methods like roll coating or spraying.
pH Stability: Highly stable across a broad pH range (3–11), making it suitable for acidic and alkaline industrial cleaners and coating systems.
实际行业应用
应用领域
Industrial Coatings: Ideal for water-borne metal primers and topcoats applied to difficult surfaces, ensuring uniform film thickness and protection.
Printing Inks: Enhances dot gain control and color development in water-based flexographic and gravure inks on plastic films.
Wood Finishes: Improves wetting on natural wood oils and resins, preventing pinholes and ensuring a smooth, aesthetic decorative finish.
Adhesive Formulations: Optimizes the spread of pressure-sensitive and lamination adhesives, increasing bond strength through improved surface contact area.
Overprint Varnishes: Provides high gloss and defect-free application for paper packaging coatings where rapid wetting is vital for speed.
