Search our website
+86 13536034040
Home » Metal Fabrication Services » Metal Surface Treatments
Following Lists The Surface Treatments And Finishes Offered:
Processing pre-finished material (and helping you select pre-finished material options available in the marketplace); including galvanized, electro-galvanized, galvannealed, galvalume, aluminized, one or two sided poly film masked, polished, pre-grained, pre-primed, pre-painted, diamond plate, perforated, embossed, sheet stock.
● Powder coating
● Liquid painting
● Screen printing
● Pad printing
● Galvanized, hot-dip galvanizing, spin galvanizing
● Graining, and straight-line finishing
● Grinding
● Deburr, media deburring
● Tumbling
● Zinc plating on steel, RoHS compliant
● Anodizing on aluminum
● Chromate conversion coating or chemfilm on aluminum
● Passivation on stainless steel
● E-coating
● Black oxide
● Electropolish
● Electro-plating
● Electroless plating
● Nickel, electroless nickel
● Tin
● Heat treating and heat treatment
● Blasting, shot blasting, bead blasting, sand blasting, peening
CNCT can provide sheet metal surface treatment methods include:
Painting :

> CNCT uses paint coating to BS EN ISO12944-2, C3 specification
> Surface preparation: Clean metal to AS 1627.1 then abrasive blast all surfaces U.N.O to AS 1627.4 CLASS 3 profile min. 75µm.
> Primer: Epoxy zinc rich primer, min. 60µm DFT
> Build Coat: High solids epoxy micaceous iron oxide 2 coats min. TOTAL DFT 175µm
> Top coat: 2 pack polyurethane, MIN. 75µm DFT
Powder Coating:
Electrostatically applying a dry powder to the sheet metal surface, which is then cured through heat to form a durable and protective coating.

> The most up-to-date & environmentally friendly pre-treatment which enables us to achieve minimum 1000 hour salt test
> All batches will undergo adhesion sampling testing to ensure compliance
> Flexible 24 hour shift coverage to achieve first class delivery
> Partners with major powder companies to help us achieve the best prices
> ISO 9001 and TS 14001 Certified
Immersing the sheet metal in a bath of molten zinc to form a protective zinc coating, which provides excellent corrosion resistance.
> Before hot-dip galvanizing, the surface treatment of the components must be done to ensure the cleanliness of the metal surface.
> The product should be flat and smooth, free from dripping tumors, roughness, and zinc thorns, no molting, and no residual solution residue.
> The average total weight of the zinc layer should not be less than 610g/m, and the average thickness should not be less than 85m
> The quality and standards after hot-dip galvanizing should comply with the provisions of GB/T13912-2002
Submit Your 
Leave your information or upload your drawings, and we will assist you with technical analysis within 12 hours.
You can also contact us by email directly:
Metal Surface Treatments
CNCT stands at the forefront of manufacturing excellence with our state-of-the-art production facilities. Our factory is equipped with:

High-Power Laser Cutting Machines : Our range includes large-scale laser cutters with capabilities from 1500W to 10000W, allowing precise and efficient cutting of a wide array of materials from thin sheets to thick plates, catering to both small customized projects and high-volume production runs.
Laser Tube Cutting Technology : With advanced laser tube cutters, we handle a variety of tube profiles and specifications, ensuring the cut is always clean, precise, and perfectly aligned with our client's specifications.
CNC Bending and Punching Equipment : Our CNC press brakes and punching machines range from 100 to 600 tons, offering flexibility and precision for forming intricate designs and consistent part reproduction.
Diverse Welding and Automated Welding Equipment : We boast an array of welding stations, including specialized machines for different welding processes, as well as automated welding setups that ensure high throughput with consistent, superior quality.
High-Precision CNC Machining : Our CNC lathes and machining centers are calibrated for utmost precision, allowing us to execute complex and detailed machining tasks with exacting tolerances.
Utilizing these advanced technologies, CNCT is not only able to deliver superior quality products but also offers enhanced production efficiency and a flexible response to the custom needs of our clients. We are committed to pushing the boundaries of manufacturing to provide you with products that meet the highest standards of quality and precision.

Sheet Metal Fabrication Processes

CNCT metalwork is able to offer a complete “one-stop shop” service for customers with sheet metal fabrication requirements. Our extensive capabilities in CAD design, Prototyping, Laser Cutting, Laser/Punch Combination, CNC Punching, CNC Folding, CNC Turning, CNC Machining, Welding, Powder Coating and Assembly mean that we can offer the complete sub-contract service.
Recent Custom Products


CNC Machining Parts

Powder Coating

Why Choose YOCO
CNCT are ISO,NDT,AWS,IWE, CCS certified factory.Our dedicated and professional quality control team guarantees our products meeting the highest standards.

Competitive Pricing

We will select the best-suited production process to keep the costs as low as possible.

Short Lead Times & On-Time Production

Get your parts quicker than before. 6-day lead times for small orders.

Guaranteed Quality

QA team closely monitors the production process and checks your orders to ensure high quality.

1-1 Support

Our professional 1-1 support can help to speed up the order,lower the cost,etc.

Instant Quotes

Get your offer in a matter of seconds .Work on your own time as we are always online for you.

Project Management

Free up your time for value-added activities. Everything from quoting to production and delivery is handled by us.
Our Other Services
Automated Sheet Metal Panel Bending
Automated Sheet Metal
CNC Machining
What is powder coating and powder coating process?​​​​​​​
Powder coating is a surface finishing process commonly used on sheet metal and other metal substrates. It involves applying a dry, powdered paint or coating to the surface, which is then cured under heat to create a smooth, durable, and protective finish.

1.Preparation: The sheet metal surface is cleaned and pre-treated to remove any dirt, grease, rust, or other contaminants.

2.Powder application: The powdered coating material, which consists of a blend of pigment, resin, and other additives, is electrostatically charged and sprayed onto the sheet metal surface.

3.Curing: After the powder is applied, the sheet metal is cured at high temperatures in a specialized oven or curing equipment.

4.Cooling and inspection: Once the curing process is complete, the sheet metal is cooled and inspected for any defects, such as bubbles, runs, or uneven coating.

5.Powder coating offers several advantages over traditional liquid coatings:

6.Durability: Powder coatings provide a robust finish that is resistant to chipping, scratching, fading, and corrosion.

7.Environmentally friendly: Powder coating is a solvent-free process, which means it produces fewer volatile organic compounds (VOCs) compared to liquid coatings. This makes it a more environmentally friendly option.

8.Aesthetics: Powder coatings are available in a wide range of colors, textures, and finishes, allowing for customization and achieving desired aesthetics.

9.Efficiency: Powder coating is an efficient process since the overspray can be collected and reused, reducing waste.

Powder coating is widely used in various industries, including automotive, appliance manufacturing, architecture, furniture, and many others, due to its durability, aesthetics, and environmental benefits.​​​​​​​
What is sheet metal painting​​​​​​​?
Sheet metal painting is the process of applying a layer of paint or coating to the surface of sheet metal to enhance its appearance, protect it from corrosion, and provide a durable finish. It involves several steps, including surface preparation, primer application, paint application, and protective coating.

1.Surface preparation: The sheet metal surface is cleaned to remove any dirt, grease, rust, or other contaminants.

2.Primer application: A primer is applied to the sheet metal surface after it has been properly prepared. The primer serves as a bonding agent between the base metal and the paint layer.

3.Paint application: Once the primer has dried, multiple layers of paint are applied to the sheet metal surface. The choice of paint can depend on factors such as desired color, finish, and the intended use of the sheet metal.

Protective coating: To enhance the durability and longevity of the paint finish, a protective coating can be applied over the paint layer. This could be a clear lacquer, topcoat, or clear coat.​​​​​​​
What is galvanizing process?​​​​​​​
Galvanizing is a process that involves coating steel or iron with a layer of zinc to protect it from corrosion. The zinc coating acts as a sacrificial barrier, preventing the underlying metal from coming into direct contact with corrosive elements in the environment.

1.Surface Preparation: The steel or iron surface is cleaned to remove any dirt, grease, and mill scale.

2.Pre-fluxing: The metal may undergo a pre-fluxing step, especially when hot-dip galvanizing is employed.

3.Galvanizing: The cleaned metal is immersed in a bath of molten zinc. The temperature of the zinc bath typically ranges from 440 to 460 degrees Celsius (824 to 860 degrees Fahrenheit).

4.Metallurgical Reaction: When the metal is dipped into the molten zinc, a metallurgical reaction known as galvanic or electrochemical reaction occurs.

5.Cooling and Quenching: After the metal is withdrawn from the zinc bath, it is allowed to cool naturally or is quenched in water.

The galvanized coating offers multiple advantages:

1.Corrosion Protection: The zinc coating acts as a barrier, protecting the underlying metal from corrosion caused by moisture, oxygen, and other environmental factors.

2.Durability: Galvanized coatings provide long-lasting protection to steel or iron structures, even in harsh environments.

Cost-effectiveness: Galvanizing offers a cost-effective solution for corrosion protection compared to other coatings or methods.

Galvanizing finds applications in various industries, including construction, automotive, agriculture, infrastructure, and marine, where the durability and corrosion resistance of steel or iron are essential.
Contact us

Leave your information or upload your drawings, and we will assist you with technical analysis within 12 hours. You can also contact us by email directly:

*Please upload only jpg, png, pdf, dxf, dwg, step files. Size limit is 25MB.

CNCT metalwork is a member of YOCO international. CNCT have been in metalwork in China since 2007.
Contact Us
  Pengjiang Section, Jiangmen 
City, Guangdong Province, China
  +86-750-3162699
+86 13536034040 (Echo liu)


Quick Links

Copyright © 2023 YOCO INTERNATIONAL. All rights reserved .| Sitemap
Leave a Message
Contact us

Leave your information or upload your drawings, and we will assist you with technical analysis within 12 hours. You can also contact us by email directly:

*Please upload only jpg, png, pdf, dxf, dwg, step files. Size limit is 25MB.