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High chemical resistance to solvents, acids, and alkalis.
Excellent thermal stability for demanding curing processes.
Low viscosity enabling easy formulation and improved flow in coatings.
Outstanding weathering resistance with minimal gloss loss and chalking.
Good compatibility with melamine formaldehyde crosslinkers and other common resins.
Automotive OEM and refinish topcoats.
Industrial coil coatings for metal roofing and cladding.
Powder coatings for appliances and architectural aluminum profiles.
High-performance can coatings for food and beverage containers.
General-purpose decorative and protective industrial finishes.
| Chemical Type | Saturated polyester resin |
| Product Form | Clear, viscous liquid |
| Appearance | Colorless to pale yellow, transparent |
| Primary Applications | Thermoset coatings (powder, coil, can, automotive) |
| Key Features | High crosslink density, low volatility, excellent film integrity |
| Benefits | Enhanced durability, reduced VOC potential, consistent cure response |
| Storage Stability | Stable at 20–25 °C for ≥12 months in sealed container |
| Crosslinking System | Compatible with melamine, urea, and blocked isocyanate hardeners |
Q1: What is the primary function of DYNAPOL L912 in powder coating formulations?
A: DYNAPOL L912 serves as a reactive co-resin that enhances crosslink density, improves mechanical properties such as scratch and mar resistance, and supports excellent flow and leveling in thermosetting polyester–TGIC or HAA-based powder coatings.
Q2: Is DYNAPOL L912 compatible with standard curing agents used in architectural and industrial powder coatings?
A: Yes, DYNAPOL L912 is specifically designed for compatibility with common crosslinkers including triglycidyl isocyanurate (TGIC) and hydroxyalkyl amide (HAA) systems, enabling robust performance across a wide range of cure schedules and film thicknesses.
Q3: How does DYNAPOL L912 contribute to weathering performance in exterior-grade coatings?
A: As a saturated polyester resin, DYNAPOL L912 provides inherent resistance to UV degradation and hydrolysis, supporting long-term gloss retention, color stability, and chalking resistance when formulated into high-performance exterior powder coatings.
Q4: What handling and storage conditions are recommended for DYNAPOL L912?
A: Store in original, tightly sealed containers in a cool, dry place away from direct sunlight and sources of heat. Avoid prolonged exposure to moisture or elevated temperatures to maintain consistent reactivity and processing behavior.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
