Features Of BASF Efka FA 4665 Dispersants
Pigment Stabilization - Prevents flocculation in concentrated systems
Color Uniformity - Eliminates floating/flooding issues
Process Optimization - Reduces grinding time by 30-40%
Surface Enhancement - Delivers ≥85° gloss (20°)
Universal Compatibility - Works with NC, PU, alkyd systems
Typical Applications Of BASF Efka FA 4665 Dispersants
Nitrocellulose Lacquers - For furniture/wood coatings
Baking Enamels - Industrial finishing systems
2K PU Coatings - Automotive/industrial applications
Chlorinated Rubber - Marine/anti-corrosive paints
Specifications Of BASF Efka FA 4665 Dispersants
Chemical Name | Partially Polyamide and High Molecular Weight Unsaturated Carboxylate |
Appearance | Transparent Yellowish Liquid |
Brand | Efka |
Model | FA4665 |
Active Content | 50-54% |
Solvent | Alkylbenzene/Diisobutyl Ketone |
Density (20°C) | 0.94-0.96 g/cm³ |
Acid Value | 100-140 mg KOH/g |
Flash Point | 40°C |
Packaging | 20kg/drum |
Origin | Netherlands |
BASF Efka FA 4665 Dispersants – Frequently Asked Questions (FAQ)
Q1: What types of pigments is Efka FA 4665 especially effective for?
A: Efka FA 4665 is particularly effective for stabilizing high-surface-area inorganic pigments (e.g., titanium dioxide, iron oxides) and challenging organic pigments—including phthalocyanines and quinacridones—in solvent-borne and high-solids coatings systems.
Q2: Can Efka FA 4665 be used in water-based systems?
A: Efka FA 4665 is primarily designed for solvent-borne and high-solids coating formulations. It is not recommended for direct use in conventional water-based systems due to its non-ionic, solvent-soluble nature; waterborne applications typically require dedicated polymeric dispersants with hydrophilic functionality.
Q3: How does Efka FA 4665 contribute to gloss and color strength in final coatings?
A: By promoting efficient pigment deagglomeration and providing steric stabilization, Efka FA 4665 helps achieve uniform particle distribution, which enhances color development, improves tinting strength, and supports higher film gloss—especially in automotive and industrial topcoats.
Q4: What is the typical dosage range for Efka FA 4665 in standard formulations?
A: Dosage depends on pigment type, concentration, and desired performance, but Efka FA 4665 is generally used at low concentrations—typically ranging from 0.1% to 2% by weight relative to pigment solids—making it highly efficient in demanding dispersion processes.
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