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High chemical resistance to solvents, acids, and alkalis in cured coatings.
Excellent weathering and UV stability for long-term outdoor performance.
Low viscosity enabling high solids content formulations with good flow and leveling.
Good compatibility with melamine-formaldehyde crosslinkers for thermoset powder and liquid coatings.
Consistent batch-to-batch reproducibility meeting stringent industrial quality control standards.
Automotive OEM clearcoats and topcoats requiring high gloss and durability.
Architectural metal cladding and façade coatings for building exteriors.
Appliance coatings for refrigerators, washing machines, and ovens.
General industrial maintenance coatings for metal structures and equipment.
Powder coating systems requiring excellent transfer efficiency and film integrity.
| Chemical Type | Saturated polyester resin |
| Product Form | Pale yellow to light amber viscous liquid |
| Appearance | Clear, homogeneous liquid without sediment |
| Primary Applications | Thermosetting coatings (liquid & powder), crosslinked with melamine or TGIC |
| Key Features | High weather resistance, low VOC potential, excellent substrate adhesion |
| Benefits | Enables high-performance, durable finishes with balanced cure speed and flexibility |
| Storage Stability | At least 12 months in unopened original packaging at 5–30 °C |
Q1: What is the primary application of DYNAPOL S 341 in coating systems?
A: DYNAPOL S 341 is primarily used as a reactive binder or crosslinker component in high-performance powder coatings, especially for architectural and industrial metal finishing applications where excellent flow, leveling, and mechanical durability are required.
Q2: Is DYNAPOL S 341 compatible with common epoxy resins and TGIC-free curing agents?
A: Yes, DYNAPOL S 341 is formulated to be compatible with standard epoxy resins and widely used TGIC-free alternatives such as β-hydroxyalkyl amides (HAA), enabling robust formulation flexibility for low-VOC and regulatory-compliant powder coatings.
Q3: How does DYNAPOL S 341 contribute to film formation and surface appearance?
A: As a saturated polyester resin with controlled molecular weight distribution and low melt viscosity, DYNAPOL S 341 promotes uniform melt flow and minimizes orange peel, supporting smooth, high-gloss, and defect-free film formation after curing.
Q4: What storage conditions are recommended to maintain product stability?
A: Store DYNAPOL S 341 in a cool, dry place below 30 °C, protected from direct sunlight and moisture. Keep containers tightly sealed to prevent humidity uptake, which may affect flow behavior during extrusion or processing.
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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
