English
Español
tiếng việt
русский
High molecular weight acrylic copolymer delivering excellent film-forming properties and mechanical strength.
Optimized for ambient-cure, water-reducible systems with low VOC content and good coalescence efficiency.
Provides superior gloss retention, UV resistance, and long-term color stability in demanding outdoor exposures.
Excellent compatibility with common crosslinkers (e.g., melamine formaldehyde, polyisocyanates) and pigment dispersions.
Consistent batch-to-batch performance supported by rigorous quality control and global manufacturing standards.
Architectural and industrial maintenance coatings requiring durable, weather-resistant finishes.
Waterborne coil coatings for pre-painted metal substrates in building and appliance applications.
High-performance can coatings for food and beverage containers with excellent adhesion and corrosion resistance.
Automotive refinish clearcoats and basecoats where clarity, flow, and substrate adhesion are critical.
Plastic coatings for ABS, PC, and PP substrates requiring flexibility and chemical resistance.
| Chemical Type | Acrylic copolymer (aqueous dispersion) |
| Product Form | White to off-white liquid dispersion |
| Appearance | Opaque, homogeneous liquid; slight characteristic odor |
| Solids Content | 45.0 ± 1.0 wt% |
| pH | 7.5 – 8.5 |
| Viscosity (Brookfield, #2 spindle, 20 rpm, 25°C) | 500 – 1,500 cP |
| Particle Size (D50) | 120 – 180 nm |
| Minimum Film Formation Temperature (MFFT) | ~15°C |
Q1: What is the primary function of Dow B-48N in coating and ink formulations?
A: Dow B-48N is a water-based acrylic resin designed primarily as a rheology modifier and film-forming aid. It helps stabilize pigment dispersions, improve gloss and leveling, and enhance overall film integrity without significantly increasing viscosity at low shear.
Q2: Is Dow B-48N compatible with other common waterborne resins and additives?
A: Yes, Dow B-48N demonstrates broad compatibility with acrylic emulsions, vinyl acetate copolymers, and many common surfactants, defoamers, and coalescing agents used in architectural and industrial waterborne systems. Compatibility testing under actual formulation conditions is recommended to confirm performance.
Q3: How should Dow B-48N be incorporated into a formulation to achieve optimal performance?
A: It is typically added during the let-down stage, after pigment grinding, under moderate agitation. Direct addition to high-shear zones or highly acidic environments should be avoided to maintain colloidal stability. Dosage generally ranges from 0.1% to 2% by weight of the total formulation, depending on desired rheological response and application requirements.
Q4: Does Dow B-48N contribute to final film hardness or flexibility?
A: As a non-film-forming associative thickener, Dow B-48N primarily influences wet-film rheology rather than directly determining dry-film mechanical properties. However, it can support improved film continuity and uniformity, which may indirectly benefit hardness development and reduce cracking in flexible films when used with appropriate binder systems.
Contact With Us:
E-mail: wangxingqiang@ericwchem.com
Have a Questions? Call Us:
Add:
Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
