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| MOQ; | MOQ100KG，From China |
| Feature | Powder Coating & Surface Finishing Solutions |
| Classification | Powder Coating |
| Advantage | Professional, Fast Delivery, Customizable | Samples | Apply for free，Contact us now. |
This series of products is based on saturated hydroxyl polyester resin and TGIC curing agent as the main base materials, and is a thermosetting powder coating with excellent weather resistance designed for outdoor materials used in construction.
High weather resistance, strong mechanical properties;
Excellent water boiling resistance, excellent corrosion resistance;
Good polishing, good construction adaptability and high powder coating rate;
Excellent resistance to excessive baking.
Various textures, thermal transfer, metal, pearlescent effects and mixed colors, etc.
Specially used for spraying of architectural aluminum alloy profiles.
Carton packaging, lined with two layers of polyvinyl chloride plastic bags, net weight of each box is 20kg. Non-hazardous items can be transported in various ways, but should be kept away from direct sunlight, moisture and heat, and contact with chemicals.
Operators should wear dust masks during use to avoid inhaling dust and minimize long-term contact between skin and powder coating. Paint attached to the skin can be washed with soap.
| Specific gravity | 1.2~1.8g/cm³ (depending on the formula and color) |
| Particle size | Depending on the purpose, the standard type has an average particle size of 20~45 microns, less than 10 microns powder <8%, greater than 70 microns powder <20% |
| Volatile matter | <1% |
| Softening point | 60~95℃ varies depending on the color and gloss |
| Storage stability | Polyester/TGIC powder coatings should be stored in a dry and ventilated room below 35℃, and avoid direct sunlight. If stored in an air-conditioned room, the powder must be stored at room temperature or the same (temperature) as the spraying equipment before use to avoid moisture. Under this condition, the powder can be stored stably for 12 months. If it exceeds the period, it must be re-tested. If the result meets the requirements, it can still be used. Note: For low-temperature curing types and powders with a gloss of less than 40% (60°), the storage temperature should be below 30℃. |
| Test items | Inspection standard or method | Inspection index |
| Appearance | Visual inspection | Various board surface effects |
| Impact | GB/T 1732 | ≥50Kg*cm |
| Bending | GB/T 6742 | ≤2mm |
| Adhesion | GB/T 9753 | ≥6mm |
| Hardness | GB/T 9286 | Level 0 |
| Moisture and heat resistance | GB/T 6739 | ≥H |
| Boiling water resistance | GB/T 1740 | 500h No abnormality |
| Acetic acid spray resistance | GB/T 6682 | 2h No shedding or wrinkling, extremely dispersed and tiny bubbles are allowed, and slight color changes are allowed |
| Artificial weathering resistance | GB/T 1771 | 1000h No blistering or shedding of the coating, and the unilateral corrosion of the line does not exceed 4mm |
| Solvent resistance (hydrochloric acid) | GB/T 1865 | 1000h Color difference △E≤5; light retention rate ≥50% |
| Spraying | This series of products are suitable for the following spraying methods: corona electrostatic spraying; friction electrostatic spraying; electrostatic fluidized bed spraying; fluidized bed hot dip coating. | |
| Coating thickness: Use between 40~150 microns, recommended film thickness is 50~80 microns. | ||
| Curing conditions | 200℃/15 minutes is recommended, and it can also be designed according to user needs. | |
Powder coating is a dry finishing process used to apply a protective and decorative coating on metal or other surfaces. Instead of using liquid paint, fine powder particles (usually made of polyester, epoxy, or hybrid resins) are electrostatically charged and sprayed onto a conductive surface. The coated object is then baked in an oven, where the powder melts, flows, and cures into a smooth, durable finish.
Key features:
Durable, hard finish
Resistant to scratches, corrosion, and UV
Environmentally friendly (no VOCs)
Powder coating offers several advantages over traditional liquid painting:
Durability: Resistant to chipping, scratching, fading, and wear.
Corrosion Protection: Provides excellent protection against rust and chemicals.
Environmentally Friendly: No volatile organic compounds (VOCs) and minimal waste.
Efficiency: Overspray can be collected and reused, up to 99% material utilization.
Uniform Finish: Smooth, even coating without runs or drips.
Cost-Effective: Single-coat systems can achieve high film thickness, reducing labor and energy.
Aesthetic Variety: Wide range of colors, textures, and effects.
The curing temperature depends on the type of powder used:
Epoxy powder: ~160–200°C (320–392°F)
Polyester powder: ~180–210°C (356–410°F)
Hybrid (Epoxy-Polyester) powder: ~180–200°C (356–392°F)
Typical curing time: 10–20 minutes depending on thickness and oven type.
Always follow the powder manufacturer’s specifications for best results.
The powder coating process usually follows these steps:
Surface Preparation:
Clean the surface thoroughly (remove oil, grease, rust, or dirt)
Methods: chemical cleaning, sandblasting, or phosphating
Pre-Treatment:
Apply a conversion coating or primer if needed to improve adhesion
Powder Application:
Spray the powder using an electrostatic spray gun or fluidized bed
Curing:
Bake the coated object in an oven at the recommended temperature for the powder type
The powder melts and forms a continuous, smooth film
Cooling & Inspection:
Let the coated item cool
Inspect for defects, uniform coverage, and desired thickness
Equipment Needed:
Electrostatic spray gun
Compressed air supply
Powder feed hopper or container
Grounding of the object
Steps:
Ground the object: Ensures the charged powder is attracted to the surface.
Spray evenly: Hold the gun 6–12 inches from the surface, moving in smooth, overlapping strokes.
Apply sufficient powder: Ensure full coverage without excessive buildup.
Cure immediately: Transfer the sprayed item to the curing oven to fuse the powder into a solid coating.
Tips:
Maintain consistent speed and distance while spraying.
Use proper ventilation to reduce airborne powder accumulation.
Test a small area to check film thickness and color before full application.
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