English
Español
tiếng việt
русский
High chemical resistance to solvents, acids, and alkalis in cured coatings.
Excellent weathering and UV stability for long-term outdoor performance.
Good flexibility and impact resistance without compromising hardness.
Low viscosity enabling high solids formulation and reduced VOC emissions.
Optimized reactivity with common crosslinkers such as TGIC and β-hydroxyalkylamides (HAA).
Exterior architectural powder coatings for aluminum façades and window frames.
Industrial maintenance coatings for metal structures exposed to harsh environments.
Appliance coatings requiring durable, scratch-resistant finishes.
Automotive non-structural components including trim and under-hood parts.
General-purpose functional powder coatings for steel furniture and enclosures.
| Chemical Type | Saturated polyester resin |
| Product Form | Free-flowing white to off-white granules |
| Appearance | Homogeneous granular solid at room temperature |
| Primary Applications | Powder coating binder for exterior and industrial use |
| Key Features | High durability, weather resistance, low viscosity, TGIC/HAA compatible |
| Benefits | Enables high-solids, low-VOC formulations with excellent film integrity |
| Storage Stability | Stable for ≥12 months at ≤25 °C in original sealed packaging |
| Recommended Crosslinkers | TGIC, HAA-type (e.g., Primid XL-552), or glycidyl ester systems |
Q1: What is the primary application of DYNAPOL LH 874 in coating systems?
A: DYNAPOL LH 874 is a low-viscosity, high-solids saturated polyester resin designed primarily as a reactive diluent and binder component in high-performance thermosetting powder coatings—especially for architectural, industrial, and appliance finishes requiring excellent flow, gloss retention, and mechanical durability.
Q2: Is DYNAPOL LH 874 compatible with common crosslinkers used in polyester–TGIC and polyester–HAA systems?
A: Yes, DYNAPOL LH 874 exhibits good reactivity and compatibility with standard crosslinkers such as triglycidyl isocyanurate (TGIC) and hydroxyalkyl amide (HAA) curing agents, enabling formulation flexibility across both conventional and TGIC-free powder coating chemistries.
Q3: How does DYNAPOL LH 874 contribute to powder coating performance during extrusion and curing?
A: Its low melt viscosity enhances dispersion efficiency during extrusion, supporting uniform pigment and additive distribution. During curing, it promotes excellent film formation, smooth surface appearance, and balanced crosslink density—contributing to improved impact resistance and weathering stability without excessive brittleness.
Q4: Can DYNAPOL LH 874 be blended with other polyester resins or acrylics?
A: Yes, it is formulated to be miscible with a broad range of saturated and unsaturated polyester resins, as well as certain acrylic binders, allowing formulators to fine-tune rheology, cure response, and final film properties—though compatibility testing under intended processing conditions is recommended.
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
