English
Español
tiếng việt
русский
High chemical resistance to solvents, acids, and alkalis.
Excellent weathering stability and UV resistance for outdoor applications.
Low viscosity enabling easy formulation and high solids content in coatings.
Good compatibility with melamine formaldehyde crosslinkers and other common resins.
Consistent batch-to-batch performance supported by Evonik’s stringent quality control.
Powder coatings for architectural aluminum profiles.
High-performance coil coatings for pre-painted metal substrates.
Industrial maintenance coatings requiring long-term corrosion protection.
Automotive OEM and refinish clearcoats demanding gloss retention and durability.
General-purpose thermosetting topcoats for metal furniture and appliances.
| Chemical Type | Saturated polyester resin (carboxyl-functional) |
| Product Form | Free-flowing white to off-white granules |
| Appearance | Homogeneous granular solid |
| Acid Value (mg KOH/g) | 28–34 |
| Hydroxyl Value (mg KOH/g) | 10–16 |
| Molecular Weight (Mn, GPC vs. PS) | ~2,800–3,200 |
| Glass Transition Temperature (Tg, °C) | 62–68 |
| Primary Applications | Powder coatings, coil coatings, industrial thermosets |
Q1: What is the primary application of DYNAPOL LH818-05 in coating systems?
A: DYNAPOL LH818-05 is a saturated polyester resin designed primarily as a crosslinker for high-performance powder coatings, especially in decorative and functional applications requiring excellent gloss retention, mechanical durability, and weather resistance.
Q2: Which curing agents is DYNAPOL LH818-05 typically formulated with?
A: It is commonly used with triglycidyl isocyanurate (TGIC) or hydroxyalkyl amide (HAA) hardeners in thermosetting powder coating formulations. Compatibility and reactivity should be verified experimentally for specific system requirements.
Q3: How does DYNAPOL LH818-05 contribute to film formation and surface properties?
A: This resin supports smooth, uniform film formation with good flow and leveling characteristics. Its molecular structure helps deliver balanced hardness, flexibility, and resistance to chipping and abrasion in the cured coating.
Q4: Is DYNAPOL LH818-05 suitable for indoor and outdoor applications?
A: Yes — it is formulated to meet performance demands for both interior and exterior architectural and industrial applications, offering good UV stability and long-term color retention when paired with appropriate stabilizers and pigments.
Q5: What are key handling and storage recommendations for this resin?
A: Store in a cool, dry place away from direct sunlight and sources of heat or ignition. Keep containers tightly sealed to prevent moisture absorption. Avoid prolonged exposure to elevated temperatures prior to processing, as this may affect reactivity and storage stability.
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
