Excellent Adhesion, Flexibility, Impact Resistance, and High Hardness: The coating provides superior durability and toughness.
Superior Leveling, Vividness, Fullness, and Saturation: The coating offers an aesthetically pleasing and elegant finish.
Rich Color Options: Available in a wide range of colors to meet customer requirements.
High Transfer Efficiency and Large Coverage Area: The coating offers lower application costs compared to traditional paints.
Environmentally Friendly: Free from volatile substances, paint odors, heavy metals, and polybrominated biphenyls (PBBs). Certified by SGS testing, it meets international standards and is non-toxic with no adverse effects.
Excellent Outdoor Durability: The coating maintains its appearance over long-term outdoor exposure.
| Item | Quality Indicator | Test Method |
|---|---|---|
| Appearance | Uniform color, loose without lumps, dry powder flowability 120-140 mm | Visual inspection, excellent dry powder flowability |
| Color | As per customer requirements, consistent with provided samples | Combination of colorimeter and visual inspection |
| Adhesion | Cross-cut test (ISO 2409. GB/T 9286-1998) | 0 level, excellent |
| Impact Resistance | Impact tester (drop weight method) (ISO 6272. GB/T 1732-1993) | Good performance at 50 kg.cm |
| Bending | Bending test instrument (ISO 1519. GB 6742-1986) | 3 mm, excellent flexibility |
| Cupping Test | ISO 1520. GB/T 9753-1993 | Pass at 7 mm |
| Surface Hardness | Pencil hardness (Mitsubishi pencil) (ASTM D3363. GB/T 6739-1996) | Over 2H |
| Heat Resistance | 150°C for 24 hours (white) | Excellent gloss retention, color difference < 0.5 |
| Humidity Resistance | ISO 6270. GB/T 1740-1979 | Over 1000 hours |
| Salt Spray Test | ISO 7253. GB/T 1771-1991 | Over 500 hours |
| Weather Resistance | ISO 2810. Florida exposure (45° south-facing, 12 months) | Gloss retention > 50% |
| Artificial Accelerated Aging | 60°C/8 hours UV + 50°C/4 hours condensation, cycled for 500 hours (QUV-B313 lamp) | Gloss retention > 50%, color retention (color difference < 3.5) |
Outdoor display signs
Billboards
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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