
Weather-resistant pure polyester powder coatings designed for frame and chassis parts
– High corrosion resistance
– Excellent bending resistance
– Excellent stone impact resistance and UV resistance
Application: Suitable for frame and chassis parts of various models
Curing time: 180~200tCx10~15 minutes
Spraying method: high voltage electrostatic spraying 60~80KV
Recommended film thickness: 60-150 um
| Project | Instrument | Judgment standard | Test standard |
| Pencil hardness | Pencil hardness tester | A 1H | GB/T 6739 ASTM D 3363 |
| Impact resistance | Impact tester | 50 kg.cm (8mm diameter)
2.5Nm (16mm diameter) (20mm diameter) |
GB/T1732 ASTM D 2794 ISO 6272 |
| Bending resistance | Bending tester | v2mm
Cylindrical shaft |
GB/T 6742
ASTM D 1737 |
| Adhesion | Hundred grid test | Grade 0 | GB/T 9286 ISO 2409 ASTM D 3359 |
| Cupping | Cupping instrument | M 6 mm | GB/T9753 ISO 1520 |
| Salt spray resistance | NSS salt spray | &600H, WbW2mm | GB/T1771 ASTMB-117 ISO 7253 |
| Moisture and heat resistance | Constant temperature and humidity chamber | M 1000H slight gloss loss | GB/T1740 ISO 6270 |
| Weather resistance | Aging test chamber | QUV-B313 500H N 3 level | GBZT 1865 ISO 11341 |
| Motor oil resistance | L—E10# | No surface change after 24 hours of immersion | GB/T 1734 |
| Anti-Stone Impact | Anti-Stone Impact Tester | W3 | SAEJ400 |
•The above tests all use 0.8mm degreased and derusted cold-rolled steel plates, with a coating thickness of 60 to 80um. The performance indicators of the coating will vary slightly with the gloss.
Environmental requirements: This product does not contain heavy metals such as tin, selenium, lead, hexavalent chromium, mercury, dart, cadmium, etc., and fully complies with RoHS 2.0 environmental requirements.
Explanation: We will provide complete powder coating consultation and application customization solutions based on the actual needs of each customer. The various test indicators mentioned in this report are all laboratory test data for reference only and are not intended as performance commitments for product applications. The results will vary with environmental factors and other conditions.
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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