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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. |
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 | Hardware powder | ||
| Applicable industries | Electric cabinets, steel components, mechanical equipment, bridges | ||
| Powder specific gravity | 1.2-1.8ɡ/cm³ | ||
| Product features | Corners and welding points are easy to be powdered.The color of thick and thin workpieces is consistent.Good hardness.Excellent weather and chemical resistance. | ||
| 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-coating has no cracking or shedding | |
| GB/T9753 | Passed 5mm-coating has no cracking or shedding | ||
| Impact resistance (positive impact) | ASTM D2794 | ≥50kg.cm | |
| GB/T9753 | 50kg.cm | ||
| Pencil hardness (scratch hardness) | ASTM D3363 | ≥2H | |
| GB/T6739 | ≥2H | ||
| Storage stability | 12 months (less than 30℃ environment) Re-test after expiration, if it meets the requirements, it can be used at any time | ||
| Curing process | 200℃/12min, 180℃/15min (workpiece surface temperature) | ||
| Pretreatment | All metal substrates need to be degreased and degreased. Iron-based metals are treated with zinc or iron phosphating and aluminum chroming to improve corrosion resistance. | ||
| Coating | Manual or automatic spraying equipment can be used. To ensure the consistency of the coating, automatic spraying equipment is recommended.Unsprayed powder can be recycled through an appropriate recycling system.Atomizing air pressure ∽0.5 bar .Primary air ∽0.5 bar, spraying voltage 40-90kv. | ||
| Damage repair | Surface treatment: Grinding + air cleaning Application: Recoating mode,reduce spraying voltage. | ||
| Safety Warning | When spraying, do not eat, drink or smoke, and avoid inhalation of dust.Wear a suitable breathing mask.For more information, please ask the salesperson for the material safety data sheet of the specific product for reference. | ||
| 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 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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