5%-99% and above depending on the end requirement
Full color range isavailable.
Specific gravity
1.2-1.5g/cm3 (varied with different color and gloss)
average 10~38um, proportion 10~84um{>}90%,it
can be adiusted if special requirement is put
| Item | Details |
|---|---|
| Gloss Levels | 5%–95% and above (customizable) |
| Color Options | Full color range available |
| Industry | Examples |
|---|---|
| Racking Industry | Storage racks, supermarket racks, pallet racks, racking systems |
| Metal Furniture | Steel furniture, document cabinets |
| Aluminium Extrusion | Aluminium profiles, aluminium products |
| Gas Cylinders | Gas cylinders, gas tanks |
| Electrical Industry | Electric cabinets, electric panels |
| Metal Doors | Iron doors, steel doors, security doors, rolling shutter doors |
| Parameter | Details |
|---|---|
| Specific Gravity | 1.2–1.9 g/cm³ (varies by color and gloss) |
| Particle Size | Average 10–84 μm, >90% within range (adjustable for special requirements) |
| Application Method | Electrostatic spraying |
| Curing Schedule | 10 minutes at 180°C (metal temperature), or customizable |
| Optimal Film Thickness | Smooth: 60–90 μmSandy texture: 70–120 μmHammer texture: 150–350 μm |
| Average Coverage Rate | Smooth surface: 6–12 m²/kg (60 μm thickness)Texture surface: 5–7 m²/kg (120 μm thickness) |
| Substrate | Recommended Pretreatment |
|---|---|
| Aluminium | Chromate conversion |
| Steel | Zinc phosphate |
| Zinc-coated steel | Zinc phosphate or chromate conversion |
| Test Item | Test Standard | Test Index |
|---|---|---|
| Impact Resistance | GB/T 1732-1993, ISO 6272 | 50kg/cm |
| Adhesion (Cross-cut) | GB/T 9286-1998, ISO 2409 | Class 0 |
| Flexibility | GB/T 6742-1986, ISO 1519 | 2mm |
| Pencil Hardness | GB/T 6739-1996, ISO 1519 | 1H-2H |
| Cupping Test | GB/T 9753-1988, ISO 1520 | 8mm |
| Salt Spray Resistance | GB/T 1771-1991, ISO 7253 | >500 hours |
| Damp Heat Resistance | GB/T 1740-1979, ISO 6270 | >1000 hours |
Powder coatings can be categorized by resin system (epoxy, polyester, hybrid, polyurethane), appearance (smooth, texture, hammer, metallic, pearlescent), or performance level (anti-corrosion, heat-resistant, UV-resistant, architectural grade, automotive grade).
Powder coatings offer thousands of colors in gloss, matte, satin, metallic, candy, texture, wrinkle, hammer tone, wood grain, fluorescent, and other custom effects. Special powders can create soft-touch, anti-scratch, anti-fingerprint, or anti-graffiti surfaces.
The process generally includes surface pretreatment (degreasing, phosphating, chromating, sandblasting), drying, electrostatic spraying, curing in an oven, and cooling. A well-controlled pretreatment and curing process ensures strong adhesion and long service life.
Powder coatings are environmentally friendly, solvent-free, and produce minimal waste. They offer excellent corrosion resistance, weather durability, mechanical strength, and uniform film appearance. The coating is tough, impact-resistant, scratch-resistant, and has a long lifespan.
Powder coatings are widely used in appliances, aluminum profiles, architectural components, automotive parts, bicycles, furniture, outdoor equipment, machinery, electrical cabinets, pipeline systems, and general industrial and consumer goods.
Powder coating is a dry finishing technology where finely ground powder is electrostatically sprayed onto a metal or non-metal surface and then cured at high temperature. After curing, the powder melts into a continuous, durable, and decorative coating layer.
Powder coating protects the substrate from corrosion, weathering, chemical attack, and mechanical wear. It also provides decorative appearance with rich colors, gloss levels, textures, and special effects.
In many industrial applications, powder coating outperforms liquid paint. It forms a thicker and tougher coating, resists corrosion and chemicals better, and does not contain VOCs. It also provides excellent consistency and cost-effective mass production.
It is called powder coating because the coating material is a solid powder instead of a liquid paint. The coating is formed by melting and curing powder particles under heat.
Powder coatings include several families depending on resin chemistry:
• Epoxy powders
• Polyester powders
• Epoxy-polyester hybrid powders
• Polyurethane powders
• Acrylic powders
• Fluorocarbon (PVDF) powders
Each type has its own performance features such as corrosion resistance, UV resistance, chemical resistance, outdoor durability, or decorative properties.
Powder coatings are based on thermoset or thermoplastic resins combined with pigments, curing agents, fillers, additives, and in some cases metallic or effect particles. Common substrates include steel, aluminum, galvanized metal, MDF, and certain heat-resistant plastics.
The lifespan depends on powder type, film thickness, application method, pretreatment, and service environment. Indoor coatings can last more than 10–20 years. High-grade outdoor polyester or fluorocarbon powders can last 15–25 years or longer under UV exposure.
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