Surface Finishes

High-quality surface finishing services enhance both the aesthetics and functionality of your parts, no matter the manufacturing process. From metals and composites to plastics, we provide exceptional finishing solutions to help you turn your envisioned prototypes or components into reality.

All Surface Finish Options

Name

Image

Used Materials

Color

Discriptions

As Machined

CNC machining

N/A

Standard finish, surface roughness of 3.2 μm (126 μin), removes sharp edges and deburs parts cleanly.

Alodine

Aluminum,
Copper,
Magnesium

Clear,
Yellow

Alodine is a chemical coating. Used to passivate and protect the workpiece from corrosion. Alodine is widely used in chemical industries such as electroplating, welding, alloy manufacturing, pigments, and leather making.

Anodizing

Aluminum,
Titanium,
Magnesium

Clear, Yellow,
Green, Blue,
Black, Orange,
Purple, Red

Painting

All Materials

Clear, Yellow,
Green, Blue,
Black, Orange,
Purple, Red

Fix the product to be sprayed on the rotating bracket, and then lock the bracket on the assembly line. Spray the paint evenly on the surface of the product. It gives a good touch feel onto the product, but is easy to scratch.

Black Oxide

All Materials

Black

Black oxide is also an oxide film. Mainly used to increase the corrosion resistance and appearance of the product, and to minimize light reflection. Suitable for surface treatment of steel and stainless steel products.

Brushing

ABS, Aluminum, Brass, Stainless Steel, Steel

N/A

Brushing is a surface treatment method that forms lines on the surface of the workpiece by grinding the product to achieve a decorative effect. Make the product more beautiful.

Chrome-Plating

Aluminum, Stainless Steel, Steel, Brass, Copper

Chrome

As a type of electroplating technique, chrome plating processes a thin layer of chromium onto a plastic or metal surface. This layer can be decorative, corrosion-resistant, and increase surface hardness.

Laser engraving

All materials

Chrome

Both laser engraving and etching uses high heat from the laser beam to leave a permanent marking on the plastic part surface. The engraving creates deep marks by removing the material, whereas the etching is using high heat to melt the material.

Nickel Plating

Aluminum, Stainless Steel, Steel, Brass, Copper

N/A

Nickel plating is the process of depositing nickel on the surface of metal parts. It can effectively improve the surface gloss, corrosion resistance, and abrasion resistance of the product.

Pad printing

ABS, PP,PC, Nylon,PE, PET

N/A

Similar to silk screening, pad printing is an indirect offset printing process, A curved pad made of silicone rubber is dipped into the surface of the pad and pressed onto the desired surface to print words, patterns, etc.

Powder Coating

All Metal Materials

Can be Customized

Powder coating is a process of applying dry powder coating to metal surfaces. Powder coatings are usually applied electrostatically and then cured under heating or ultraviolet light.

Sand Blast

All Metal Materials

N/A

Sandblasting is a process of cleaning and roughening the surface of the product using the impact of high-speed sand flow. Its function is to make the surface of the workpiece obtain a certain degree of cleanliness and different roughness.

Silk screening

All Metal Materials

N/A

Silk Screening is a printing technique that transforms a 2d image onto a 3D image. Normally a screen printing plate is made by a photochemical process. It uses the mesh to transfer the ink to the substrate.

UV Coating

ABS, PP,
PC, PE,
Nylon

N/A

UV coating is short for ultraviolet coating, The UV Coating is a similar process to Painting, where clean components are evenly spread with paint and are instantly dried by ultraviolet light. this gives advantages of scratch, wear, and chemical resistance.

SPI Finish

Injection molding

N/A

SPI Finish standardizes surface textures on plastic parts, offering finishes from high-gloss to matte, ensuring consistent aesthetics and functionality in injection molding.

What is Surface Roughness?

Definition of Surface Roughness

Surface roughness refers to the fine irregularities present on a surface, characterized by small peaks and valleys with short spacing. The distance between consecutive peaks or valleys (wave distance) is typically less than 1 mm, making it a microscopic geometric error. A lower surface roughness value indicates a smoother surface.

Factors Influencing Surface Roughness

Surface roughness is primarily determined by the machining method and other contributing factors, such as:

Friction between the cutting tool and the workpiece during machining.
Plastic deformation of the material on the surface as chips are removed.
High-frequency vibrations in the machining system.
Different machining techniques and workpiece materials result in varying depths, densities, shapes, and textures of the traces left on the surface.

Impact of Surface Roughness on Parts

Surface roughness significantly affects the performance and reliability of mechanical parts, influencing:

Mating properties.
Wear resistance.
Fatigue strength.
Contact stiffness.
Vibration and noise levels.
These factors collectively impact the service life and reliability of mechanical components. Surface roughness is commonly quantified and specified using the Ra parameter.