Surface Finishing Options

Get your metal and plastic parts a high quality and aesthetic surface finish. Bead blasting, anodizing, powder coated, etc in as fast as 5 days.

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Available surface finishes

Here is a list of standard surface finishes. For custom surface finishes such as electroplating or polishing, please contact Aaron@g-techco.com.

As-machined

As-machined

Our standard finish is “as machined” finish. It has a surface roughness of 3.2 μm (126 μin). All sharp edges are removed and parts are deburred. Tool marks are visible.

Color
n/a
Texture
n/a
Price
0.00
Material
All materials

Bead blasting

Media blasting uses a pressurized jet of abrasive media to apply a matte, uniform finish to the surface of parts.

Color
n/a
Texture
Matte
Price
0.00
Material
Aluminum, Steel, Stainless Steel, Brass, Copper
Bead blasting
Anodizing

Anodizing

Anodizing is an electrolytic passivation process that grows the natural oxide layer on aluminum parts for protection from wear and corrosion, as well as for cosmetic effects.

Color
Clear, black, grey, red, blue, gold
Texture
Smooth, matte finish
Price
0.00
Material
Aluminum

Electroplating

Nickel plating is a process used to electroplate a thin layer of nickel onto a metal part. This plating can be used for corrosion and wear resistance, as well as for decorative purposes.

Color
Gold, silver, nickel, copper, brass
Texture
Smooth, glossy finish
Price
0.00
Material
Aluminum, steel, stainless steel, brass
Electroplating
Polishing

Polishing

Polishing is the process of creating a smooth and shiny surface, either through physical rubbing of the part or by chemical interference. The process produces a surface with significant specular reflection, but in some materials is able to reduce diffuse reflection. Polishing can improve the appearance of new or used metal parts, including components in cars and other vehicles, handrails, cookware, kitchenware, and architectural metal. Pipes may also require buffing, a kind of polishing, to prevent corrosion and buildup of bacteria or mold. Buffing is also used to manufacture light reflectors.

Color
n/a
Texture
Glossy
Price
0.00
Material
Aluminum, Brass, Stainless Steel, Steel

Powder coating

The application of powder coating, which is applied as a free-flowing, dry powder is a surface finishing technique used to create a hard finish tougher than normal paint. Powder coating is mainly used to coat metal parts, such as those used in household appliances.

Color
Black, any RAL code or Pantone number.
Texture
Gloss or semi-gloss
Price
0.00
Material
Aluminum, Stainless Steel, Steel
Powder coating
Brushing

Brushing

Brushing is a surface treatment process in which abrasive belts are used to draw traces on the surface of a material, usually for aesthetic purposes. The thickness of the abrasive belts (usually between \#80-120) affects the finish. Although suitable for a handful of metals, brushing is most commonly applied to aluminum.

Color
n/a
Texture
Satin
Price
0.00
Material
ABS, Aluminum, Brass, Stainless Steel, Steel

Painting

Painting involves spraying a layer of paint onto the surface of the part. Colors can be matched to a Pantone color number of the customer’s choosing, while finishes range from matte to gloss to metallic. Painting the surface of a part improves its aesthetic appearance and can provide brand recognition to consumers. In addition, painting can have a protective effect on parts. For example, surface painting is an effective method to protect metal from oxidation and corrosion.

Color
Black, any RAL code or Pantone number.
Texture
Gloss, semi-gloss, flat, metallic, textured
Price
0.00
Material
Aluminum, Stainless Steel, Steel
Painting
Black oxide

Black oxide

Black oxide is a conversion coating similar to Alodine that is used for steel and stainless steel. It is used mainly for appearance and for mild corrosion resistance.

Color
Black
Texture
Smooth, matte
Price
0.00
Material
Steel, Stainless Steel

Alodine

Chromate conversion coating, more commonly known by its brand name Alodine, is a chemical coating that passivate and protects aluminum from corrosion. It is also used as a base layer before priming and painting parts.

Color
Clear, Gold
Texture
Same as before
Price
0.00
Material
Aluminum
Alodine
Part marking

Part marking

Part marking is a cost-effective way to add logos or custom lettering to your designs and is often used for custom part tagging during full-scale production.

Color
Custom
Texture
n/a
Price
0.00
Material
All materials

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