Which Trends Will Shape Manufacturing in 2026? Read Our 2026 Manufacturing Outlook.

On-demand CNC machining service for rapid prototyping and production parts, through a network of specialized, experienced and thoroughly vetted local and global CNC machine shops.

Surface Finishes

Description

Services

Applicable Materials

As Machined

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

CNC machining, Sheet metal fabrication

Metals, Plastics

Sand Blasting

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

CNC machining, Sheet metal fabrication

Metals, Plastics

Tumbling

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

CNC Machining, Sheet metal fabrication

Metals, Plastics, Glass

Electropolish

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

CNC machining

Stainless steel, Copper, Aluminum

Heat Treatment

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

CNC machining

Metals

Alodine

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

CNC machining, Sheet metal fabrication

Aluminum, Aerospace Alloys

Anodizing

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

CNC Machining, Sheet metal fabrication

Aluminum

Teflon Coating

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

CNC machining, Sheet metal fabrication, Injection molding

Metals, Plastics

Black Oxidize

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

CNC machining, Sheet metal fabrication

Steel, Iron

Electroless Plating

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

CNC machining, Injection molding, 3D printing

Metals, Plastics

Electroplating

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

CNC machining, Sheet metal fabrication

Metals

Painting

Application of paint for aesthetic improvements and protective coatings.

CNC machining, Sheet metal fabrication, Injection molding, 3D printing

Metals, PlasticsMetals, Plastics, Wood

Passivation

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

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

CNC machining, Sheet metal fabrication, Injection molding

Metals, Some Plastics

Electrophoresis

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

CNC machining, Sheet metal fabrication

Metals, Ceramics

Brushed Finish

Mechanical polishing that produces a unidirectional satin finish.

CNC machining, Sheet metal fabrication

Metals

SPI Finish

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

Injection molding

Plastics

Start Custom Parts Manufacturing

OD Precision is your trusted partner for high-quality prototypes and production-ready machined parts, no matter how simple or complex. Backed by ISO 9001 certification and years of expertise, we guarantee accuracy, consistency, and reliability in every project.

Get In Touch With Us!​

Prompt response guaranteed within 12 hours​

  • 🔐 All uploads are secure and confidential