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Epoxy Powder Coating
Characteristics
Specific Gravity: 1.4–1.8 g/cm³, depending on the formulation and color.
Particle Size Distribution: Average size 30–50 μm; 99% < 100 μm, 60–70% > 32 μm.
Applications
Application Methods: Suitable for high-voltage electrostatic spraying and friction electrostatic coating.
Recommended Film Thickness: 50–150 μm, depending on industry requirements.
Coverage: 9–12 m²/kg at a film thickness of 60 μm.
Packaging and Storage
Packaging: 20 kg cartons with inner plastic liners.
Storage Conditions: Store away from heat sources and direct sunlight, in a dry environment below 30°C.
Shelf Life: 24 months under recommended storage conditions.
Curing Conditions
Low-Temperature Curing: 160°C for 20 minutes (based on workpiece temperature).
Standard Curing: 180°C for 20 minutes (based on workpiece temperature).
Fast Curing: 200°C for 10 minutes (based on workpiece temperature).
Type of Powder | |||||||
Property | Standard Polyester | Enhanced Polyester | Epoxy | Hybrid | Polyurethane | Acrylic | PVDF |
Exterior Durability | Good | Excellent | Very Poor | Poor | Good | Excellent | Excellent |
Corrosion Resistance | Good | Good | Excellent | Good | Good | Good | Good |
Impact | Excellent | Poor | Excellent | Excellent | Good | Poor | Excellent |
Flexibility | Excellent | Good | Excellent | Excellent | Good | Good | Excellent |
Adhesion | Excellent | Excellent | Excellent | Excellent | Excellent | Excellent | Poor |
Cost | Medium | Medium / High | Medium | Low | Medium | High | High |
Film Appearance @ 50µ | Good | Very Good | Good | Good | Excellent | Good | Poor |
Volatile Emissions | Very Low | Very Low | Very Low | Very Low | Low | Very Low | Very Low |
Low Bake | Yes | No | Yes | Yes | No | Yes | No |
Chemical Resistance | Good | Good | Excellent | Very Good | Good | Very Good | Good |
Gloss Range | 10-95% | 20-95% | 5-90% | 5-90% | 5-95% | 30-90% | 30-60% |
Heat Resistance | Very Good | Good | Poor | Good | Very Good | Good | Good |
Abrasion | Good | Good | Very Good | Good | Good | Good | Poor |
Compatibility | Good | Good | Good | Good | Good | Very Poor | Very Poor |