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Surface Treatment Center

Surface Treatment Services

16 precision surface treatments, completed in one stop with machining

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AS9100D ITAR
Company
Strength
20 Years of Experience
20 Years of Experience
72 Sets of CNC Machines
72 Sets of CNC Machines
Precision: ±0.01mm
Precision: ±0.01mm
7-15 Days Fast Shipping
7-15 Days Fast Shipping
Quality
Advantages
No Knife Marks
No Knife Marks
No Scratches
No Scratches
No Blemishes
No Blemishes
No Color Difference
No Color Difference
Overview Selector Tools Treatments Find a Process Process Cases FAQ Get a Quote
Overview Professional Surface Treatment Services

Surface treatment improves the appearance, corrosion resistance, wear performance and dimensional stability of machined parts. Match a process by substrate below, and see full specifications on each treatment page.

We provide one-stop service from CNC machining to surface treatment: anodizing, electroplating, electroless nickel, painting, bead blasting, polishing and passivation are all completed in-house, ensuring controllable lead times and traceable quality. Surface finishing not only improves appearance but also significantly enhances corrosion resistance, wear resistance and insulation.

Choose a process by substrate

  • Aluminum alloys: Type II anodizing, Type III anodizing, bead blasting, polishing, brushing
  • Steel and iron: zinc plating, chrome plating, electroless nickel, powder coating
  • Stainless steel: passivation, electropolishing, bead blasting, painting
  • Titanium alloys: anodizing, PVD coating, bead blasting
  • Engineering plastics: plastic painting, silk screening, laser engraving, vacuum metallizing

All treatments can be quoted together with machining, with a standard lead time of 2-5 business days. Thickness, adhesion and salt-spray test reports are available on request.

Surface Treatment Services
Selector Tools Choose a Treatment by Need

Start with your main requirement, then match the process. Click any entry to see full specifications in the treatments overview below.

Corrosion Protection

Plating and chemical conversion coatings provide long-term rust protection for steel, aluminum and stainless steel parts in humid and chemical environments.

5 processes View processes
Wear Resistance

Anodizing (Type III) and chrome plating significantly increase surface hardness for guide faces, friction pairs and high-load assembly surfaces.

3 processes View processes

Decorative Finish

Multi-color anodizing, painting and PVD coating deliver brand colors, premium texture and consistent appearance quality.

5 processes View processes

Marking & Function

Silk screening and laser engraving provide part numbers, logos and batch traceability, plus insulation and conductivity functions.

2 processes View processes
Surface Treatment

Browse All Surface Finishes

Explore our comprehensive range of post-machining surface finishing services.

Anodizing (Type II) Surface Treatment
Surface Treatment

Anodizing (Type II)

Aluminum Type II anodizing in 50+ colors, decorative and corrosion resistant.

ColorClear, Black, Gold, Red, Blue
Applicable MaterialsAluminum, Titanium
Thickness5-25 μm
Price$$
Lead TimeAbout 3 business days
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Anodizing (Type III) Surface Treatment
Surface Treatment

Anodizing (Type III)

Aluminum Type III anodizing, thick wear-resistant insulating layer.

ColorGray, Black
Applicable MaterialsAluminum
Thickness25-150 μm (Type III)
Price$$$
Lead TimeAbout 5 business days
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Chromate Conversion Surface Treatment
Surface Treatment

Chromate Conversion

Aluminum chromate conversion coating, corrosion resistant and conductive.

ColorGold, Clear
Applicable MaterialsAluminum
Thickness0.5-3 μm
Price$
Lead TimeAbout 2 business days
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Electroless Nickel Surface Treatment
Surface Treatment

Electroless Nickel

Electroless nickel, uniform deposit, corrosion and wear resistant.

ColorSilver
Applicable MaterialsSteel, Copper, Aluminum
Thickness5-25 μm
Price$$
Lead TimeAbout 4 business days
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Zinc Plating Surface Treatment
Surface Treatment

Zinc Plating

Zinc plating for steel, clear/yellow/black passivation, cost effective.

ColorSilver, Yellow, Black
Applicable MaterialsSteel, Iron
Thickness5-25 μm
Price$
Lead TimeAbout 3 business days
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Chrome Plating Surface Treatment
Surface Treatment

Chrome Plating

Chrome plating, decorative and hard, boosts hardness and appearance.

ColorSilver (bright)
Applicable MaterialsSteel, Brass, Copper
Thickness0.25-1 μm
Price$$$
Lead TimeAbout 5 business days
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Passivation Surface Treatment
Surface Treatment

Passivation

Stainless steel passivation removes free iron, ASTM A967 compliant.

Color—
Applicable MaterialsStainless Steel
Thickness—
Price$
Lead TimeAbout 2 business days
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Powder Coating Surface Treatment
Surface Treatment

Powder Coating

Powder coating, durable UV and chemical resistant, rich colors.

ColorVarious (RAL/Pantone)
Applicable MaterialsAll metals
Thickness60-120 μm
Price$$
Lead TimeAbout 4 business days
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Wet Painting Surface Treatment
Surface Treatment

Wet Painting

Wet painting with custom colors, epoxy/polyurethane/enamel systems.

ColorVarious (RAL/Pantone)
Applicable MaterialsAll metals and plastics
Thickness20-35 μm
Price$$
Lead TimeAbout 4 business days
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Bead Blasting Surface Treatment
Surface Treatment

Bead Blasting

Bead blasting for uniform matte finish, removes marks and burrs.

ColorMatte Silver
Applicable MaterialsAll metals
Thickness—
Price$
Lead TimeAbout 2 business days
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Polishing Surface Treatment
Surface Treatment

Polishing

Polishing to mirror or near-mirror finish, refined and clean.

ColorMirror finish
Applicable MaterialsAll metals
ThicknessRa 0.2-0.8 μm
Price$$
Lead TimeAbout 3 business days
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Brushing Surface Treatment
Surface Treatment

Brushing

Brushing for consistent straight grain, premium satin look.

ColorSatin finish
Applicable MaterialsAll metals
Thickness—
Price$
Lead TimeAbout 2 business days
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Silk Screen Printing Surface Treatment
Surface Treatment

Silk Screen Printing

Silk screening on plastic/metal, clear durable single or multi-color.

ColorSingle / multi colour (Pantone)
Applicable MaterialsABS, PC, PMMA, PET and other plastics
Thickness5-20 μm
Price$
Lead TimeAbout 2 business days
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Laser Engraving Surface Treatment
Surface Treatment

Laser Engraving

Laser engraving, non-contact permanent marks, precise and traceable.

ColorLight grey / dark (depends on material)
Applicable MaterialsABS, PC, POM, PEEK, Nylon
Thickness0.05-0.5 mm
Price$$
Lead TimeAbout 2 business days
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Vacuum Metallizing Surface Treatment
Surface Treatment

Vacuum Metallizing

Vacuum metallizing for metallic look, dense and wear resistant.

ColorSilver, gold, chrome
Applicable MaterialsABS, PC, PMMA
Thickness0.5-2 μm
Price$$$
Lead TimeAbout 4 business days
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Plastic Painting Surface Treatment
Surface Treatment

Plastic Painting

Plastic painting hides base color, matte/gloss, brand-color custom.

ColorVarious colours (matte / gloss)
Applicable MaterialsABS, PC, PMMA, PA and other plastics
Thickness20-40 μm
Price$$
Lead TimeAbout 3 business days
View More
Find the Right Process Choose a Treatment by Requirement

Not sure which treatment to choose? Select your primary requirement below and we will recommend the most suitable option.

Corrosion Resistance

For outdoor, humid, chemical and marine environments; prevents rust and pitting and extends service life.

Zinc Plating Chrome Plating Passivation Electroless Nickel
Wear Resistance

For reciprocating motion, guide faces and high-friction assembly surfaces requiring higher surface hardness.

Anodizing (Type III) Chrome Plating Polishing

Appearance & Color

For consumer electronics and visible surfaces requiring consistent color, texture and batch stability.

Anodizing (Type II) Powder Coating Wet Painting Vacuum Metallizing

Marking & Traceability

For applications requiring part numbers, logos or batch traceability, with durable or decorative marking.

Silk Screening Laser Engraving
Process How Surface Treatment Works

Six steps from selection to shipping ensure stable, controllable surface quality on every part.

1

Select Finish

Choose your desired surface finish and color when requesting your quote or placing your order.

2

Machining

Parts are machined to final dimensions, accounting for any coating thickness requirements.

3

Pre-Treatment

Cleaning, degreasing, and surface preparation ensure optimal finish adhesion and quality.

4

Surface Treatment

Anodizing, plating, painting, or other specified finish is applied by certified partners.

5

Quality Inspection

Thickness, adhesion, and appearance are verified. Salt spray, humidity, and other tests available.

6

Shipping

Finished parts are carefully packaged to protect the surface and shipped globally.

Cases Surface Treatment Case Studies

Real CNC projects showing how surface treatment performs across industries and processes.

Robot Parts CNC Machining

Robot Parts CNC Machining

ShowyMetal offers CNC machining for robot joints and housings. Supports 3-5 axis milling, tolerance ±0.01mm

Aluminum Alloy Aerospace 3-Axis CNC Machining
Energy Custom Precision Components

Energy Custom Precision Components

Precision CNC machining for wind, energy storage, and solar inverters. Stable ±0.01mm tolerance, Ra0.4μm finish. 3-5 axis one-shot forming

Aluminum alloy Energy 3-axis CNC machining
Energy Aluminum Alloy Structural Components

Energy Aluminum Alloy Structural Components

Precision aluminum parts for solar and energy storage. 3-5 axis CNC with anodizing, Ra0.4μm finish. DFM support, 15-25 day delivery, and CMM inspection reports.

Aluminum alloy Energy 3-axis CNC machining
Energy CNC Machined Enclosures

Energy CNC Machined Enclosures

CNC precision machining for energy control boxes and sensor housings in aluminum and stainless steel, featuring anodizing, ±0.01mm tolerance, Ra0.4μm finish

Aluminum alloy Energy 3-axis CNC machining
Precision Aluminum Alloy Parts for Energy

Precision Aluminum Alloy Parts for Energy

ShowyMetal offers precision CNC machining for solar, storage, and wind energy. Supports 3-5 axis, ±0.01mm tolerance, Ra0.4μm finish.

Aluminum Alloy Energy 3-Axis CNC Machining
Custom Precision Components for Camera Gear

Custom Precision Components for Camera Gear

Precision CNC machining for gimbals and adapters. Aluminum/titanium/plastic. ±0.01mm tolerance, Ra0.4μm finish. Anodizing included. 15-25 day delivery. DFM review.

Aluminum Alloy Camera Gear 3-axis CNC Machining
Photography Equipment Aluminum Alloy Structural Parts

Photography Equipment Aluminum Alloy Structural Parts

ShowyMetal provides CNC-customized aluminum structural parts for photography gear. 6061/7075 alloy, ±0.01mm precision. 15-25 day lead time. Request a quote today.

Aluminum Alloy Photography Equipment 3-axis CNC Machining
CNC Milled Enclosures for Camera Equipment

CNC Milled Enclosures for Camera Equipment

5-axis CNC milled enclosures for camera gear. Aluminum/magnesium alloys, ±0.01mm precision, flawless finish, one-stop delivery.

Aluminum alloy Photographic equipment 3-axis CNC machining
Precision Aluminum Parts for Camera Gear

Precision Aluminum Parts for Camera Gear

ShowyMetal offers high-precision CNC aluminum machining for camera bodies and lens mounts. Precision ±0.01mm

Aluminum alloy Camera equipment 3-axis CNC machining
Custom Semiconductor Precision Components

Custom Semiconductor Precision Components

Custom semiconductor fixtures and precision brackets. 5-axis CNC, stainless steel/titanium. ±0.005mm tolerance, Ra0.2μm finish. 3-5 day prototyping.

Aluminum Alloy Semiconductor 3-axis CNC Machining
View All Cases
FAQ Frequently Asked Questions

The most frequently asked questions about process selection, compatible materials, film thickness and lead time.

Related to Surface Treatment

Can anodizing or painting match specific colors?+

Yes, powder coating and liquid spray paint can match RAL, Pantone color cards, or customer-provided samples. Anodizing provides over 50 standard colors, with custom color matching available upon request.

Read full answer

Does Surface Treatment Affect Part Dimensions?+

Yes, most surface treatments increase the part's surface thickness. Anodization typically adds 0.5-2 mils per side, while electroplating adds 0.1-2 mils depending on the type. Our engineers account for this material allowance during machining to ensure the final dimensions meet specifications.

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What Is the Difference Between Type II and Type III Anodizing?+

Type II is standard anodizing with a thinner oxide layer (0.5-1.5 mil), suitable for decoration and corrosion resistance. Type III (hard) anodizing features a thicker oxide layer (1-2 mil) with significantly higher hardness and wear resistance, ideal for functional applications.

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Which Materials Can Be Anodized?+

Anodizing is primarily used for aluminum alloys (6061, 7075, 2024). Titanium alloys can also be anodized. Other metals such as steel and brass require different surface treatments like electroplating or passivation.

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What Is the Typical Surface Roughness for 3-Axis Machined Parts?+

Standard machined surface roughness is 125 Ra (3.2 µm); finish machining achieves 63 Ra (1.6 µm). Post-processing such as sandblasting or polishing can further improve surface quality.

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Can 5-axis machining process Inconel and other special alloys?+

Yes, our 5-axis equipment is specifically designed for difficult-to-machine materials. We have extensive experience machining Inconel, titanium alloys, Hastelloy, and other superalloys commonly used in the aerospace and energy industries.

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What Is the Difference Between 5-Axis Simultaneous and 5-Axis Positioning (3+2) Machining?+

5-axis simultaneous motion means all five axes move during cutting, enabling complex 3D contour machining. 5-axis positioning (3+2) locks rotary axes at specific angles, then uses standard 3-axis movement. Continuous 5-axis suits complex profiles; positioning 5-axis is better for multi-face prismatic parts.

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What is the Difference Between CNC Turning and CNC Machining?+

In CNC turning, the workpiece rotates while the tool remains stationary, suitable for cylindrical parts such as shafts, pins, and sleeves. In CNC machining, the workpiece is stationary while the tool rotates, ideal for flat, prismatic and complex 3D geometric shapes.

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Need a custom surface treatment for your parts?

Upload your drawings for a free DFM review and surface treatment recommendation. Our engineers reply with the right process, material and quote within 12 hours.

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Send Us Your Drawing — We Handle the Rest

Send your STEP / DWG / PDF drawing and get a detailed quote with free DFM analysis and process recommendations within 2 hours. No minimum order — from 1 piece.

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Live inquiries
Michael · GermanyNeed 500 aluminum brackets, please quote
Sophie · FranceLead time for CNC turned stainless shafts?
David · USANeed 1000 injection molded ABS housings
Emma · UKCan you machine 5-axis titanium parts?