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| OEM | OEM Services Provided |
| Feature | Good stability |
| Classification | Paint Additives |
| Advantage | Professional, Fast Delivery, Customizable | Samples | Apply for free，Contact Export Director now ↓ |
Features:
Great adhesion, impact resistance, and hardness;
Smooth coating layers with high gloss;
Chemical and weather resistance;
Great Storage stability
Epoxy/Polyester Hybrid Powder Coatings: A Balanced Solution
Epoxy/polyester hybrid powder coatings combine the best properties of epoxy and polyester resins, offering cost efficiency, good durability, and broad applicability. Below is a structured overview:
| Property | Specification |
|---|---|
| Resin Composition | 30-50% Epoxy resin + 50-70% Polyester resin |
| Curing Mechanism | Carboxyl-epoxy reaction (thermosetting) |
| Curing Conditions | 160-200°C (320-392°F) for 10-15 minutes |
| Film Thickness | 50-80 μm |
| Gloss Range | 20-90% (matte to high gloss) |
| Adhesion | Excellent (ASTM D3359: 5B) |
| Feature | Hybrid (Epoxy/Polyester) | Pure Epoxy | Pure Polyester (TGIC/PRIMID) |
|---|---|---|---|
| UV Resistance | Moderate | Poor | Excellent |
| Chemical Resistance | Good | Excellent | Fair |
| Cost Efficiency | High | Moderate | High |
| Indoor Durability | Excellent | Excellent | Good |
| Industry | Typical Uses |
|---|---|
| Appliances | Refrigerators, washing machines, ovens |
| Furniture | Office furniture, shelving, metal cabinets |
| General Metal | Electrical enclosures, lighting fixtures, HVAC components |
| Automotive | Interior parts, engine brackets, under-hood components |
| Component | Typical Content (wt%) | Function |
|---|---|---|
| Epoxy Resin | 30-50% | Chemical resistance, adhesion |
| Polyester Resin | 50-70% | UV stability, flexibility |
| Pigments & Fillers | 15-30% | Color, opacity, and texture |
| Flow Additives | 1-2% | Smooth film formation |
| Catalysts | 0.5-1% | Cure acceleration |
| Limitation | Mitigation Strategy |
|---|---|
| Limited UV Resistance | For outdoor use, add UV stabilizers or topcoats |
| Yellowing Over Time | Use light-stable polyesters and antioxidants |
| Lower Flexibility vs. Pure Polyester | Optimize resin ratio and curing conditions |
| Coating Type | Best For | Not Recommended For |
|---|---|---|
| Hybrid (Epoxy/Polyester) | Indoor appliances, furniture | Outdoor UV-exposed surfaces |
| Pure Epoxy | Chemical-resistant industrial parts | Outdoor applications |
| Pure Polyester | Outdoor architectural coatings | Acid/alkali exposure environments |
Epoxy/polyester hybrid powder coatings strike a balance between performance and cost, making them ideal for indoor and mild-environment applications. While they lack the UV resistance of pure polyesters, their superior adhesion and chemical resistance justify their widespread use in appliances, furniture, and general metal coatings.
Declaration: The products displayed on this website are intended exclusively for industrial applications or scientific research. They are not intended for medical, pharmaceutical, or food use. In accordance with applicable laws and regulations, purchasing organizations must hold valid qualifications and approvals.
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