Powder Coating Service Supplier In China
Powder Coating is a high-performance finishing process where a dry, powdered polymer is electrostatically applied to a grounded metal part and then cured under heat to form a tough, durable, and protective skin. This method creates a finish that is significantly more durable than conventional liquid paint, offering superior resistance to chipping, scratching, and fading. As a leading industrial supplier in China, Celerity Precision provides expert powder coating services, delivering components with a flawless, long-lasting finish ideal for the most demanding industrial, automotive, and outdoor applications.
For a finish that combines maximum durability with excellent aesthetics, make Celerity Precision your powder coating supplier.
Your Powder Coating Finish Manufacturer
At Celerity Precision, we are a manufacturer that has mastered the science and art of powder coating. Our integrated finishing facility includes a complete powder coating line with a multi-stage chemical pre-treatment system, an environmentally controlled spray booth, and high-temperature curing ovens. We understand that a perfect powder coat finish begins with impeccable surface preparation. Our process ensures every part is thoroughly cleaned and pre-treated to create the ideal surface for the powder to adhere to, guaranteeing maximum durability and corrosion resistance. Our skilled technicians expertly apply the powder, ensuring complete and even coverage before the part is cured to create a hard, cross-linked polymer shell.
By managing your project from raw material to final coated product, we provide a true single-source manufacturing solution. This integration allows us to control quality at every step, from the precision of the initial fabrication to the final aesthetic of the finish. We are experts in masking threads, tapped holes, and critical mating surfaces to protect their functionality. When you partner with Celerity Precision, you are choosing a manufacturer that takes full responsibility for delivering a component that is not only built to spec but is also finished to survive and thrive in its end environment.
Demand a tougher finish for your parts. Upload your project to Celerity Precision for an all-inclusive quote from a dedicated manufacturing partner.
Powder Coating: Technical Specifications
| Feature | Description |
| Surface Roughness (Ra) | Covers and Smooths. The final texture is determined by the powder and application, not the substrate. It creates a smooth, continuous film that effectively covers minor surface imperfections. Can be specified from smooth to textured. |
| Applicable Materials | Any metal that can hold an electrostatic charge and withstand the curing temperature (typically ~200°C / 400°F), including Aluminum, Steel, and Stainless Steel. |
| Cosmetic Availability | Excellent. Offers a vast range of colors (RAL matching), finishes (matte, satin, gloss), and special effects (metallics, textures, wrinkles). Provides a high-quality, “factory-finished” look. |
| Visual Appearance | A thick, uniform, opaque, solid-colored layer. The finish is typically very smooth with a slight “orange peel” texture, though it can be specified as a heavy texture or wrinkle finish. Appears very durable and substantial. |
Advantages of Powder Coating Surface Finish
Exceptional Durability
Creates a finish that is much tougher than conventional paint, offering superior resistance to chipping, scratching, impact, and abrasion.
Superior Corrosion Resistance
The thick, non-porous coating provides an excellent barrier against moisture, chemicals, and salt, making it ideal for outdoor and industrial use.
Wide Range of Aesthetics
Offers a huge selection of colors, textures, and gloss levels to meet any design requirement.
Environmentally Friendly
Powder coating is a "green" process with virtually zero VOC (Volatile Organic Compound) emissions, and unused powder can be reclaimed and reused.
Cost-Effective and Efficient
The high transfer efficiency and reclaimability of the powder make it a very cost-effective and low-waste process, especially for production runs.
One-Coat Coverage
A single application is often sufficient to achieve a thick, protective, and decorative finish, simplifying the finishing process.
Powder Coating Design Considerations
Significant Coating Thickness
Powder coating adds a substantial thickness (typically 0.05mm to 0.15mm). This must be accounted for in the design of assemblies. Holes will become smaller and external features will grow larger.
Masking is Essential
All threads, tapped holes, and critical mating surfaces must be identified for masking (plugging or taping) to prevent the thick coating from interfering with assembly.
Faraday Cage Effect
Sharp internal corners, deep recesses, and narrow channels can be difficult to coat uniformly, as the electrostatic charge tends to concentrate on outer surfaces. Generous internal radii are recommended.
Heat Requirement
The part must be able to withstand the curing temperature (around 200°C / 400°F) without warping or degrading. This makes it unsuitable for most plastics or parts with heat-sensitive components attached.
FAQ
Is powder coating better than liquid paint?
For durability, yes. It is generally tougher and more resistant to chipping and scratching. For color range and the ability to create very thin, high-gloss finishes, liquid paint can sometimes have an edge.
How much thickness does powder coating add?
A standard coating is quite thick, typically ranging from 0.05mm to 0.15mm (0.002″ to 0.006″).
Can you powder coat plastic parts?
Generally, no. Most plastics cannot withstand the high curing temperatures required for the powder to melt and flow into a solid coating.
Can you match a specific RAL color?
Yes, absolutely. Powders are available in the full range of RAL colors, which is a key advantage of the process.
How do you protect threads and holes?
We use high-temperature silicone plugs, caps, and tapes to mask all features that must remain free of coating. This is a critical part of our standard process.
What is the "Faraday cage effect"?
This is an electrostatic phenomenon where it’s difficult for the charged powder particles to get into sharp internal corners. Our technicians use advanced techniques to minimize this, but good design (using radii) is the best prevention.
Is powder coating environmentally friendly?
Yes, it is considered a very “green” technology because it contains no solvents (zero VOCs) and excess powder can be collected and reused, leading to very little waste.
Can you create a textured finish?
Yes. A wide variety of textured, sand, and wrinkle finishes are available in powder form, which are great for hiding surface imperfections and providing a durable, non-slip grip.
Will the finish be perfectly smooth?
A standard powder coat finish will have a very slight “orange peel” texture, which is a normal characteristic of the process. Very smooth finishes are possible with special powders and application techniques.
How should I specify powder coating on my drawing?
Be specific about the color and finish. For example: “Powder Coat, RAL 9005 Black, Semi-Gloss, Texture: Smooth.” It is also critical to clearly indicate all features that require masking.