Surface Finishes Service for Metal and Plastic Parts

Browse surface finishing

Name (32)	Applicable Materials	Colors	Description
Spray painting - High gloss paint	Metals, Plastics	Applicable to all pantone colors-High gloss	Spray painting: Using spray guns with air pressure to disperse into uniform and fine droplets and apply the painting to the surface of the object.
Electropolished (Ra0.8µm, 32µin)	Metals		An electrochemical process cleans steel parts to reduce corrosion and improve appearance, by making the metal brighter.
Bead Blast	Metals, Plastics		The part surface is left with a smooth, matte appearance.
Brushed	Metals		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.
Electrophoresis	alloy steel, aluminum, brass, copper, and mild steel		Electrophoresis is the motion of dispersed particles relative to a fluid under the influence of a spatially uniform electric field.
Etching			Laser etching, also called laser engraving or laser marking, is used to create a visible mark on the surface of many substrates, including metal, plastic, stone and glass.
Smooth machining (Ra1.6µm, 63 µin)	Metals, Plastics		A finishing CNC machining operation can be applied to the part to reduce its surface roughness.
PVD (Physical Vapor Deposition)	Metals		Physical vapour deposition (PVD) is a process used to produce a metal vapour that can be deposited on electrically conductive materials as a thin, highly adhered pure metal or alloy coating.
Standard (As-Milled) (Ra 125μin)	Metals, Plastics		The finish option with the quickest turnaround. Visible tool marks, potentially sharp edges and burrs would be removed by default.
Others	Metals, Plastics	Applicable to all pantone colors	When the surface finish you need is not listed above, or you have special requirements for the surface treatment of the part, please describe it clearly below.
Passivation	Metals		Improves corrosion resistance for 200 and 300 series and precipitation hardened corrosion-resistant steels.
Spray painting - Matt paint	Aluminum, Titanium, Plastics	Applicable to all pantone colors-Matt	Spray painting: Using spray guns with air pressure to disperse into uniform and fine droplets and apply the painting to the surface of the object.
#1000 sanding	Metals, Plastics		Sanding is the use of fine abrasive sand particles to rub the surface of the product to produce a diffuse, non-linear texture effect.
Bead blast + Anodized color	Metals		Anodizing creates a corrosion-resistant finish. Parts can be anodized in different colors—clear, black, red, and gold are most common—and is usually associated with aluminum.
Anodized	Metals, Plastics		It creates a corrosion-resistant finish. Parts can be anodized in different colors—clear, black, red, and gold are most common—and is usually associated with aluminum.
Electrically conductive oxidation	Metals		It creates a corrosion-resistant finish, the film produced by conductive oxidation is only 0.01-0.15 micrometers,
Chrome plating	Metals		Chrome plating is a technique of electroplating a thin layer of chromium onto a metal object.
Zinc plating	Metals		Galvanization is the process of applying a protective zinc coating to steel or iron, to prevent rusting.
Nickel plating	Metals		Nickel plating is a technique of electroplating a thin layer of nickel onto a metal object.
Tin plating	Metals		Tin plating is the process of thinly coating sheets of wrought iron or steel with tin, and the resulting product is known as tinplate.
Silver plating	Metals		Silver plating is about the method of adding a thin layer of silver to an object.
Gold plating	Metals		Gold plating is a method of depositing a thin layer of gold on the surface of glass or metal, most often copper or silver.
Black oxide	Stainless steel, steel		Black oxide is a conversion coating used to improve corrosion resistance and minimize light reflection.
Laser engraving	Metals, Plastics		Laser engraving is the use of laser technology to engrave text and pattern on objects.
Silkscreen	Metals, Plastics	Applicable to all pantone colors	Silkscreen generally refers to screen printing, which is the process of pressing ink through a stencilled mesh screen to create a printed design, graphics and text.
Dyeing	Plastics	Applicable to all pantone colors	Dyeing is done in a special solution containing dyes and particular chemical material.
Pickling	Metals		Pickling is a metal cleaning process that uses very strong acids to clean the metal of certain types of surface conditions.
Vacuum plating - Matt paint	Plastics	Applicable to all pantone colors-Matt	Vacuum plating mainly includes vacuum evaporation, sputtering and ion plating.
Vacuum plating - High gloss paint	Metals, Plastics	Applicable to all pantone colors-High gloss	Vacuum plating mainly includes vacuum evaporation, sputtering and ion plating.
Chemical conversion coat (Chem film)	Metals		Non-chromic chemical conversion coating provides corrosion resistance and good conductivity properties.
Powder coat - Matt	Metals	Applicable to all pantone colors-Matt	This is a process where powdered paint is sprayed onto a part that is then baked in an oven.
Powder coat - High gloss	Metals	Applicable to all pantone colors-High gloss

Total 32 1/4 Page 1 2 3 4

Defining an A and a B side

Surface finishing often leaves aesthetic defects on your parts, such as hang marks for anodizing. Defining an A- and a B-side in your design will ensure that the most important areas of your part remain free of defects.

In this image you can see how you can define an A-side and a B-side in your technical drawing: A side: Indicates the most aesthetically important surface, typically the visible side of your product. B side: Indicates the side that is not aesthetically important, typically the side hidden from visibility after assembly.

Cosmetic Acceptability Criteria

All cosmetic parts produced by Justway follow our Cosmetic Acceptability Criteria:

Consistency requirements

Each part must be visually consistent across the same batch, meaning:

Same grit must be used across parts for sanding or brushing
Brush marks must be in the same direction**
Color must be consistent to the same pantone when parts are placed next to each other
Gloss units must be consistent across the batch

*** Manual brushing marks will be as unidirectional as possible. Please note that for rounded geometries, brushing marks may not be entirely unidirectional.*

Visual inspection conditions

The surface quality of every part must meet the following conditions:

Distance: 50cm ±10cm (19,7 in ± 3,9 in) with a 10/10 vision (or corrected)
Incidence angle: Approximately 45º in all directions
Lighting conditions: 500-1000 Lux, color 3300-5300 Kelvin (neutral white)

CNC Machining

Sheet Metal Fabrication

3D Printing

Injection Molding

Vacuum Casting