services
Powder Coating
AFI Industrial Co., Ltd. offers customers a full range of powder coating solutions that provide a strong, beautiful protective coating for your products.
Get A Quick ReplyPowder Coating Process
Powder spraying is to spray powder coating on the surface of the product through electrostatic spraying equipment, and then bake the powder at high temperature to melt, level, and cure, forming a uniform, smooth, and durable coating.
It can improve the adhesion and corrosion resistance of the coating, but also provide a rich choice of colors and textures, widely used in automotive, home appliances, construction, furniture, machinery manufacturing, and other fields.
AFI Industrial Co., Ltd. provides a variety of custom powder coating services, designed to give customers a unique product quality and charm. With rich spraying experience and advanced equipment, we can customize the most suitable spraying solution for customers from color selection to texture effect to special functional requirements such as thickness, etc., to ensure uniform coating, strong adhesion, bright and lasting color, and meet the various needs of customers.
AFI Powder Coating Fabrication Capabilities
| Feature | Description |
|---|---|
| Max Part Size | Oven capacity up to 10′ x 8′ x 20′ (3.05 m x 2.44 m x 6.1 m). We accommodate oversized weldments upon request. |
| Standard Lead Time | 3-5 business days (standard colors). Expedited service available for critical projects. |
| Coating Thickness | 2.0 – 4.0 mils (50 – 100 μm) typical. Specialized thin-film or high-build applications available. |
| Thickness Tolerance | +/- 0.5 mil control to ensure proper fit-up for precision mating surfaces and threaded holes. |
| Pre-treatment | 5-stage chemical wash including degreasing and iron phosphate coating for superior adhesion and corrosion resistance. |
| Curing Process | Controlled thermal cycles at 400°F (204°C) with data-logged temperature profiles to ensure full cross-linking. |
| Gloss Levels | Full range available: Flat/Matte (5-15%), Semi-Gloss (35-50%), and High-Gloss (>80%). |
| Hardness & Adhesion | Compliance with ASTM D3363 (Pencil Hardness) and ASTM D3359 (Cross-cut Adhesion) standards. |
| Precision Masking | Custom masking solutions using high-temperature silicone plugs and tapes for grounding points and internal threads. |
What is Powder Coating Forming?
The powder coating process, through three-stage degreasing pretreatment including alkali washing, acid washing and surface adjustment, optimizes the surface roughness of the substrate to Ra0.8μm and compresses the porosity to below 0.3%. We formed a 60μm polyester-TGIC coating using 40kV electrostatic adsorption technology. After thermal curing at 200℃, a cross-linking reaction occurred to construct a three-dimensional network protective structure. The glossiness of the product was increased to 95GU, and the salt spray corrosion resistance time was extended to 1000 hours.
Its impact resistance is 300% higher than that of traditional processes. After application, the outer shell of household appliances can achieve an anti-UV aging ability of 10 years, with a surface scratch resistance of over 200,000 times. While ensuring a mirror-like effect, the comprehensive production cost is reduced by 40% compared to the electroplating process, making it a core technology in modern industrial surface treatment.
AFI Custom Powder Coating Solutions
AFI Industrial Co., Ltd. provides precision powder coating services tailored to rigorous engineering specifications. We transition from standard color matching to functional coating performance, focusing on:
- Controlled Film Thickness: We maintain consistent dry film thickness (DFT) to meet specific corrosion resistance or electrical insulation requirements.
- Surface Texture & Gloss: From high-gloss decorative finishes to functional sand-textured or matte surfaces for industrial machinery.
- Engineering Pre-treatment: Our process includes multi-stage degreasing and phosphate conversion coating to ensure the coating’s salt-spray resistance and mechanical durability.
- Application Scope: We deliver high-performance finishes for the automotive, medical equipment, industrial machinery, and architectural hardware sectors.
Powder Coating Materials Available at AFI
Aluminum 1100-H14
Aluminum 5052-H32
Aluminum 6061
glass
ceramic
wooden furniture
Wooden ornament
Stainless steel 301
Stainless steel 304
Stainless Steel 304 #4 brushed
Stainless Steel 304, #8 mirror polish
Stainless steel 316/316L
Stainless Steel 316, #4 brushed
Steel 1018 (Low Carbon)
Steel 1045 (Hot Rolled)
Steel A569/ASTM A1011 (Hot Rolled)
AZ55 Galvalume
A653 Galvanized
1095 Spring Steel
Steel A36
Steel A36, pickled and oiled
Steel A366/1008
plastic products
Titanium (Grade 2)
Titanium 6AI-4V (Grade 5)
Available Powder Coating Options
Technical specifications for powder coating finishes are available for immediate online assessment. If the required substrate and coating combination is not listed, select “Other” within the finish parameters on the quotation interface. Submit the request for a technical desk review after defining the following parameters: coating thickness, surface gloss levels, tolerance requirements, and batch quantities.
Available Sheet Metal Finishes
Powder coating involves the electrostatic application of dry resin particles followed by thermal curing. This process creates a chemically cross-linked polymer layer that functions as a barrier against corrosion and mechanical impact.
Parts undergo automated degreasing and surface neutralization. The resulting coating maintains a consistent thickness according to industrial tolerances, providing a functional seal over the substrate without additional texture modification.
Substrates are processed with abrasive media to remove surface oxides and machining marks before coating. This mechanical pretreatment increases the surface area for resin adhesion and results in a non-reflective, uniform surface topology with a specific Ra value.
The powder formulation includes specialized friction agents that remain suspended during the melting phase. Upon curing, the surface forms a granular, high-friction profile that resists slip and conceals structural irregularities.
Surface finishes are categorized by their specular gloss units (GU). High-gloss options provide maximum light reflection, while matte finishes utilize matting agents to diffuse light and minimize surface glare.
If your project requires specific RAL colors, anti-microbial additives, or high-temp resistant resins, select “Other” for a technical desk review. Please specify the required film thickness ($T$) and salt spray resistance hours for environmental validation.
Get In-Depth Tips With Our Design Guide
Get GuidePowder Coating Design Guidelines
| Feature | Description (MT = Material Thickness) |
|---|---|
| Minimum Hole Diameter | 1.5 x MT (Prevents powder bridging and hole occlusion) |
| Minimum Internal Radius | 2.0 mm (Reduces Faraday Cage effect for powder penetration) |
| Hanging Point Clearance | 3.0 mm (Diameter required for hook attachment and electrical grounding) |
| Minimum Slot Width | 2 x MT (Ensures uniform electrostatic field distribution) |
| Drainage Hole Diameter | 6.0 mm (Required for liquid pretreatment exit and air ventilation) |
| Coating Build-up Margin | 0.1 mm – 0.2 mm (Allowance for film thickness on mating surfaces) |
| Edge Rounding Radius | 0.5 mm (Prevents coating thinning on sharp geometric transitions) |
| Blind Hole Depth | < 0.5 x Diameter (Limit to ensure powder reach and pretreatment rinsing)wder reach and pretreatment rinsing) |
Industrial Advantages of Powder Coating
Corrosion Resistance
The powder coating process deposits a polymer barrier that isolates the metal substrate from environmental oxygen and moisture. This chemical cross-linking prevents oxidation and extends the service life of components in industrial and outdoor environments.
Surface Uniformity
Electrostatic application ensures the resin particles distribute across geometric profiles, including edges and recesses. The subsequent thermal curing phase allows the liquid polymer to level, resulting in a consistent film thickness without the run marks associated with liquid coating.
Mechanical Durability
The cured coating achieves a high degree of adhesion through mechanical interlocking with the substrate. This protective layer maintains structural integrity under impact, abrasion, and thermal cycling, reducing the frequency of surface maintenance.
Powder Coating Fabrication Video
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Get Your Instant QuoteWhy Choose AFI Parts for Custom Powder Coating?
Endless Options
Choose from thousands of possible combinations of Powder Coating materials, finishes, tolerances, markings, and certifications for your order.
Easy to Use
Get your parts delivered right to your door without the hassle of sourcing, project management, logistics, or shipping.
Vetted Network
We are ISO 9001:2015, ISO 13485, and AS9100D certified. Only the top shops that apply to become Suppliers make it through our qualification process.