Accurate selection of powder has always been a problem for the powder industry. To solve this problem, we name the powder according to the industry' s requirements for powder coatings. We select materials for different industries and make corresponding adjustments to the process to better match the industry' s requirements. We provide customers with high-quality and low-cost products that are easy to use.
| Product name | Epoxy zinc-rich powder | ||
| Applicable industries | Outdoors need to meet 5C anti-corrosion requirements, base powder for important facilities such as bridges and cabinets. | ||
| Powder specific gravity | 1.5-2.0ɡ/cm³ | ||
| Product features |
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| Physical properties | Bending | ASTM D522 | Passed-curvature diameter is 5mm. |
| GB/T1731 | Passed-curvature diameter is 2mm | ||
| Dry adhesion | ASTM D3359 | Passed-result is 5B. | |
| ISO 2409 | Passed-result is 0 grade. | ||
| GB/T9286 | Passed-result is 0 grade. | ||
| Cupping | ISO 1520 | Passed 5mm-No cracking or shedding of coating. | |
| GB/T9753 | Passed 5mm-No cracking or shedding of coating. | ||
| Impact resistance (positive impact) | ASTM D2794 | ≥50kg.cm | |
| GB/T9753 | 50kg.cm | ||
| Pencil hardness (scratch hardness) | ASTM D3363 | ≥H | |
| GB/T6739 | ≥H | ||
| Storage stability | 12 months (less than 30℃ environment). Re-test after expiration. If it meets the requirements, it can be used at will. | ||
| Curing process | 200℃/12min, 180℃/15min (workpiece surface temperature). | ||
| Pretreatment | All metal substrates need to be degreased and degreased, iron metals are treated with zinc or iron phosphating and aluminum chromium to improve corrosion resistance. | ||
| Coating |
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| Damage repair | Surface treatment: Grinding + air cleaning.
Application: Recoating mode,reduce spraying voltage. |
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| Safety Warning |
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| Disclaimer | Important note: The information provided in this table cannot be comprehensive and is based on current laws and current knowledge. Anyone who intends to use the product in areas other than those recommended in this table without first obtaining written confirmation from us of the product' s suitability will bear the consequences. It is the user' s unshirkable responsibility to take necessary measures to meet local legal and regulatory requirements. Please continue to read the material safety data sheet and technical parameter sheet of our products when you have time. We try our best to ensure that all the instructions for our products (in or outside the table) are correct, but we cannot fully control the quality or condition of the substrate and the many factors that may affect the use of the product. Therefore, unless we specifically confirm in writing, we do not assume any responsibility for loss of product performance and any other loss or damage caused by the use of the product. All products and technical recommendations we provide are subject to our standard terms and conditions of sale. Please obtain a copy of this document and read it carefully. The content of this table will be supplemented and improved as we accumulate experience and update policies. Before using the product, the user should verify whether the data in this table is the latest. | ||
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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