溶剂型, 特种添加剂, 触变剂

VP 4410 Liquid-modified polyur

Name: VP 4410 Liquid-modified polyur 供应商
SKU: 4410

The 4410 liquid-modified polyurea thixotropic agent represents a sophisticated class of rheology modifiers designed specifically for solvent-borne and solvent-free coating systems. Chemically, it i…

属性

主要特点与优势

Superior Sag Resistance: Provides high low-shear viscosity to prevent dripping on vertical surfaces during application.
Anti-Settling Efficiency: Prevents hard-packing of heavy pigments and fillers during prolonged storage cycles.
Ease of Incorporation: Supplied as a ready-to-use liquid, eliminating the need for pre-gels or high-shear milling.
Post-Addition Flexibility: Can be stirred into finished paint for viscosity fine-tuning without affecting system chemistry.
Transparency Maintenance: Does not cause turbidity or haze, making it ideal for high-gloss clearcoats and varnishes.
Universal Compatibility: Highly effective in polar and non-polar solvent-borne systems.
Dosage Efficiency: Enhances structural integrity at low concentrations, ensuring long-term stability of complex chemical mixtures.

规格

技术亮点

Mechanism: Operates via rapid hydrogen-bond network formation that recovers instantly after shear stress is removed.
Temperature Independent: Maintains consistent rheological performance across a wide range of processing temperatures.
Non-Seeding: Unlike castor oil derivatives, it does not require precise thermal activation and will not seed.
Pigment Orientation: Improves the spatial distribution of metallic pigments for enhanced optical effects.
Solubility Profile: Highly soluble in common solvents like xylene, butanol, and acetates for seamless integration.
Film Integrity: Minimal impact on final film hardness, adhesion, or weatherability.
Thixotropic Index: Significantly increases the ratio of low-shear viscosity to high-shear viscosity for optimized spray and finish.

实际行业应用

应用领域

Industrial Coatings: Used in heavy-duty protective coatings for machinery and marine environments.
Automotive Refinish: Enhances leveling and sag resistance of high-solid clearcoats.
Wood Finishes: Provides stabilization for furniture lacquers and acid-cured coatings without losing clarity.
Architectural Paints: Optimizes application properties of solvent-borne alkyd paints and decorative enamels.
Adhesives and Sealants: Controls bead stability and prevents slump in polyurethane formulations.
Inks: Ensures consistent flow and pigment suspension in screen printing systems.
Floor Coatings: Prevents segregation in self-leveling epoxy screeds.
Coil Coatings: Maintains uniform film thickness during high-speed roller application.
Marine Anti-fouling: Stabilizes biocides and copper oxides in heavy-duty underwater hull paint.