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High molecular weight solid acrylic resin offering excellent film-forming capability and mechanical strength.
Superior UV resistance and long-term color stability for outdoor durability applications.
Excellent compatibility with common thermosetting resins including melamine, urea, and polyester crosslinkers.
Low volatile organic compound (VOC) content, supporting compliance with stringent environmental regulations.
Consistent batch-to-batch reproducibility and narrow molecular weight distribution for predictable formulation performance.
Automotive OEM clearcoats and basecoat/clearcoat systems.
Industrial maintenance coatings for metal substrates requiring weatherability and gloss retention.
Architectural high-performance coil coatings.
Powder coatings for appliances and outdoor furniture.
High-solids liquid industrial topcoats for general metal finishing.
| Chemical Type | Thermoplastic solid acrylic copolymer |
| Product Form | Free-flowing white to off-white granular solid |
| Appearance | Granular, non-dusting, homogeneous particles |
| Glass Transition Temperature (Tg) | ~75–80 °C (DSC, 10 °C/min) |
| Molecular Weight (Mw) | ~120,000–140,000 g/mol (GPC, PS standard) |
| Acid Value | 3–6 mg KOH/g |
| Volatile Content | < 0.5 wt% at 120 °C, 2 hours |
| Primary Applications | OEM automotive coatings, industrial coil coatings, high-solids and powder coating binders |
Q1: What is the primary function of DSM B-805 in coating and ink formulations?
A: DSM B-805 functions as a high-performance film-forming binder and rheology modifier, enhancing gloss, hardness, and mar resistance while supporting excellent pigment dispersion and substrate adhesion in solvent-based and high-solids systems.
Q2: Is DSM B-805 compatible with common crosslinkers used in industrial coatings?
A: Yes, DSM B-805 is designed to be compatible with standard amino resins (e.g., melamine-formaldehyde) and polyisocyanates, enabling its use in thermosetting baking and ambient-cure systems without significant compatibility or stability issues.
Q3: How does DSM B-805 perform under UV exposure and outdoor weathering conditions?
A: As a solid acrylic resin with inherent UV stability and low yellowing tendency, DSM B-805 contributes to improved long-term color retention and gloss maintenance in exterior applications—particularly when formulated with appropriate UV absorbers and HALS stabilizers.
Q4: Can DSM B-805 be used in low-VOC or high-solids coating systems?
A: Yes—its high molecular weight and solid content make it well-suited for high-solids formulations, helping formulators reduce solvent demand while maintaining flow, leveling, and film integrity during application and cure.
Q5: What are typical handling and storage recommendations for DSM B-805?
A: Store in a cool, dry place away from direct sunlight and sources of heat. Keep containers tightly sealed to prevent moisture absorption and contamination. Avoid prolonged exposure to elevated temperatures prior to processing, as this may affect powder flow or early-stage melt behavior.
Contact With Us:
E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
