Dongguan Zhonghui Precision Die Casting Technology Co., Ltd.
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Surface Finishes

High-quality surface finishing services improve your part’s aesthetics and functions regardless of the manufacturing process used. Deliver quality metal, composites, and plastic finishing services so you can bring the prototype or part you dream of to life.


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Surface Finishes Description Services Applicable Materials
As Machined
As Machined1

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

Die casting,CNC machining,Sheet metal fabrication

Metals, Plastics
Sand Blasting
Sand Blasting2

Powerfully propels blast media against surfaces to remove coatings and impurities.

Die casting,CNC machining, Sheet metal fabrication

Metals, Plastics
Tumbling
Tumbling

Utilizes barrel or vibratory processes with abrasives to smooth and polish the surface of parts.

Die casting,CNC machining, Sheet metal fabrication.

Metals, Plastics, Glass
Electropolish
Electropolish

Electrochemical process that smoothens, polishes, and deburrs metal surfaces to a high gloss.

Die casting ,CNC machining

Stainless steel, Copper, Aluminum
Heat Treatment
Heat Treatment

Alters the physical (and sometimes chemical) properties of a material to achieve desired mechanical properties.


Die casting ,CNC machining

Metals
Alodine
Alodine1

Chemical treatment process providing corrosion protection and surface preparation for paint adhesion.


Die casting,CNC machining, Sheet metal fabrication

Aluminum, Aerospace Alloys
Anodizing
Anodizing2

Electrochemical process that forms a durable, corrosion-resistant oxide layer on the surface of metals.


Die casting, CNC Machining, Sheet metal fabrication

Aluminum
Teflon Coating
Teflon Coating1

Applies a protective layer of PTFE to reduce friction and enhance corrosion resistance.


Die casting,CNC machining, Sheet metal fabrication, Injection molding

Metals, Plastics
Black Oxidize
Black Oxidize1

Chemical bath that creates a black oxide coating on metal to improve corrosion resistance.


Die casting,CNC machining, Sheet metal fabrication

Steel, Iron
Electroless Plating
Electroless Plating

Deposition of a metal coating on substrates using an autocatalytic chemical process.


Die casting,CNC machining, Injection molding, 3D printing.

Metals, Plastics
Electroplating
Electroplating1

Uses electric current to reduce dissolved metal cations to form a coherent metal coating.


Die casting,CNC machining, Sheet metal fabrication.

Metals
Painting
Painting1

Application of paint for aesthetic improvements and protective coatings.


Die casting,CNC machining, Sheet metal fabrication, Injection molding, 3D printing.

Metals, Plastics, Wood
Passivation
Passivation1

Chemical treatment to enhance the corrosion resistance of metals by removing free iron from the surface.


CNC machining, Sheet metal fabrication.

Stainless Steel, Other Corrosion-resistant Alloys
Powder Coating
Powder Coating1

Dry finishing process using powdered paint to provide a high-quality, durable finish.


CNC machining, Sheet metal fabrication, Injection molding

Metals, Some Plastics
Electrophoresis
Electrophoresis1

Coating process using charged particles suspended in a solvent, typically for uniform finishes.


CNC machining, Sheet metal fabrication.

Metals, Ceramics
Brushed Finish
Brushed Finish1

Mechanical polishing that produces a unidirectional satin finish.


CNC machining, Sheet metal fabrication.

Metals
SPI Finish
SPI Finish1

CNC machining, Sheet metal fabrication


Injection molding, 3D printing

Plastics
Perfect Your Project's Finish

Perfect Your Project's Finish

Your designs deserve the best. Enhance durability and appeal with our various finishing options. Part surfacing finishing techniques can either be for functional or aesthetic purposes. Each technique has requirements, such as materials, color, texture, and price. Step up the quality of your projects today!


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