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High molecular weight acrylic resin specifically designed for pigment dispersion stabilization.
Excellent wetting and deagglomeration performance for inorganic and organic pigments.
Improved gloss, color strength, and transparency in transparent pigment systems.
Good compatibility with nitrocellulose, CAB, and other common film-forming resins.
Low viscosity in solution, enabling high pigment loading without rheological penalty.
Automotive refinish coatings requiring high chroma and clarity.
Industrial maintenance paints for metal and plastic substrates.
Wood coatings including stains, glazes, and clear topcoats.
Printing inks for gravure and flexographic applications.
Specialty decorative coatings for architectural and design surfaces.
| Chemical Type | Acrylic copolymer (solution in aromatic hydrocarbons) |
| Product Form | Clear to slightly hazy liquid solution |
| Appearance | Pale yellow to amber liquid |
| Solvent Content | Approx. 60–65 wt% (xylene/alkylbenzene blend) |
| Non-Volatile Content | 35–40 wt% (at 105 °C, 30 min) |
| Acid Value | 18–22 mg KOH/g |
| Viscosity (25 °C, DIN 4) | 1,200–1,800 mPa·s |
| Primary Applications | Pigment grinding resin for solvent-borne coatings and inks |
Q1: What is BASF Laropal A 101 Pigment and how does it differ from conventional pigment preparations?
A: Laropal A 101 is a high-performance, solvent-soluble acrylic resin-based pigment preparation designed to enhance pigment dispersion stability, gloss, and color strength in decorative and industrial coatings. Unlike standard pigment pastes, it integrates pigment particles into a tailored polymeric matrix, improving compatibility with binder systems and reducing flocculation risk during storage or application.
Q2: Which coating systems is Laropal A 101 Pigment most commonly used in?
A: It is widely employed in solvent-borne decorative paints, wood finishes, automotive refinish topcoats, and industrial maintenance coatings—particularly where high transparency, excellent leveling, and resistance to pigment settling are required. It performs well in alkyd, polyester, acrylic, and urethane-based systems.
Q3: How should Laropal A 101 Pigment be incorporated into a formulation?
A: It is typically added during the let-down or grinding stage, depending on the process. For optimal dispersion, it is recommended to pre-mix with part of the vehicle before addition to the mill base. Avoid high-shear conditions beyond what is necessary for homogenization, as excessive energy may affect resin integrity.
Q4: Does Laropal A 101 Pigment affect film properties such as hardness or flexibility?
A: As a functional pigment carrier, it contributes to improved film continuity and surface uniformity without significantly compromising mechanical properties. Its acrylic nature generally supports balanced hardness and flexibility, though final performance depends on overall formulation design and cure conditions.
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