水性, 特种添加剂, 触变剂

VP 4561 Water-based polyamide

4561 is a high-performance, pre-activated polyamide wax dispersion specifically engineered for water-based coating systems. This sophisticated rheological additive is designed to provide exceptiona…

属性

主要特点与优势

  • Exceptional Anti-Settling: Provides superior suspension for heavy pigments and metallic flakes, preventing dense sedimentation during storage.
  • Superior Sag Resistance: Enables thick coatings on vertical surfaces without dripping, maintaining excellent film integrity and edge coverage.
  • Optimized Rheology: Imparts strong thixotropic behavior, ensuring high low-shear viscosity for stability and excellent flow under high-shear application.
  • Gloss Retention: Minimizes impact on surface gloss and transparency, making it ideal for clear coats and high-gloss finishes.
  • Easy Incorporation: Pre-activated liquid form allows simple post-addition under low-shear mixing without requiring heat or specific activation temperatures during processing.
规格

技术亮点

  • Chemical Composition: Modified polyamide wax dispersion in a water/surfactant matrix, ensuring high compatibility with polar water-borne resin systems.
  • Activation Profile: Fully pre-dispersed and pre-activated, eliminating the narrow temperature windows required by traditional organic thixotropes during paint manufacturing.
  • pH Stability: Demonstrates robust performance across a broad pH range (7.0–10.0), common in most commercial water-borne industrial formulations.
  • Hydrogen Bonding Network: Establishes a reversible physical gel structure that recovers rapidly after shear removal, enhancing structure recovery time.
  • Compatibility: Highly effective in acrylic, epoxy, polyurethane, and alkyd dispersions without causing seeding, flocculation, or surface defects.
实际行业应用

应用领域

  • Automotive Coatings: Ideal for water-borne basecoats and primers to ensure uniform orientation of metallic pigments and aluminum flakes.
  • Industrial Finishes: Used in heavy-duty machinery coatings and protective finishes where vertical film thickness and sag control are critical.
  • Architectural Paints: Enhances the application properties of premium interior and exterior latex paints, reducing spatter and improving brush-loading.
  • Wood Coatings: Provides rheological control for water-based stains and lacquers, preventing pigment settling in low-viscosity, deep-penetrating wood formulations.
  • Inks and Adhesives: Optimizes the viscosity of water-based flexographic inks and structural adhesives for improved transfer and bond stability.
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