7331 is a high-performance, polyether-modified polydimethylsiloxane copolymer designed to optimize the surface properties of liquid coatings, inks, and adhesive systems. As a non-reactive silicone …
Superior Substrate Wetting: Drastically lowers surface tension to allow application on contaminated or low-energy substrates like plastics and metals.
Advanced Surface Leveling: Promotes exceptional flow characteristics, eliminating “orange peel” and brush marks for a mirror-like finish.
Enhanced Slip and Mar Resistance: Increases surface lubricity, providing significant protection against mechanical scratches, scuffing, and abrasion.
Anti-Crater Performance: Effectively prevents surface defects caused by external contaminants such as dust, oil, or silicone droplets.
Broad Compatibility: Exhibits excellent miscibility in water-borne, solvent-borne, and UV-curable systems without causing haze or turbidity.
规格
技术亮点
Chemical Composition: Organo-modified polysiloxane (polyether-modified polydimethylsiloxane) designed for optimal migration rates during the drying and curing phase.
Non-Reactive Nature: Chemically inert structure ensures long-term stability in various resin systems, including hydroxyl-functional or acidic formulations.
High Active Content: Typically supplied as 100% active matter, ensuring maximum cost-efficiency and minimal VOC contribution to the final product.
Dynamic Surface Tension Reduction: Rapidly equilibrates at new interfaces, making it ideal for high-speed printing and industrial spray applications.
Processing Efficiency: Low dosage requirements (0.1–1.0% total weight) significantly optimize cost-to-performance ratios for large-scale industrial manufacturing environments.
实际行业应用
应用领域
Automotive Coatings: Utilized in basecoats and clearcoats to achieve high-image clarity (DOI) and superior resistance to environmental etching.
Industrial Wood Finishes: Improves wetting on porous wood surfaces and ensures uniform leveling in high-solids polyurethane and acid-cured lacquers.
Graphic Arts and Inks: Enhances substrate wetting in water-based and UV-offset inks, preventing “crawling” on non-polar plastic films and foils.
Architectural Coatings: Provides smooth application and minimizes roller marks in high-quality decorative paints and interior/exterior emulsion systems.
Protective Coatings: Used in heavy-duty anti-corrosion primers to ensure complete coverage on grit-blasted steel and irregular metallic surfaces.
