The fastest and easiest way to design, price and build custom electronics enclosures.

Silk Screening

See our technical papers on silkscreening

Silk screening, also known as screen-printing or serigraphy, is a printing technique that involves passing ink through a porous fabric, thus creating a sharp-edged single-color image created from a stencil.

Protocase completes the task of manufacturing fully finished, quality enclosures by offering silk-screening, a process that provides required labeling for connectors, switches, ports, etc., along with adding special graphics such a company logos, product identifier graphics, etc.

Our silk-screening process utilizes the latest in screen preparation technology, as well as using durable epoxy based inks, ensuring a high resolution and quality finish. Protocase stocks a variety of standard colors, and can provide custom colors upon request.

The clarity of silkscreen can be greatly affected by the texture of powder coat used. Generally for best results it is recommended you use a smooth finish. Silkscreen will work on various textures and colors but each situation is unique. This may require modifications to your silkscreen such as changing of fonts and thickening of fine lines. For more information, please contact tech support at

Font Sizes:

Minimum 9 pt font size required, with the exception of silkscreening over sandtex powdercoat, which requires a minimum 11 pt font size.

Line Size:

Minimum line size of 0.0139" (0.35306mm) required.

Acceptable Graphic File Formats:

  • .AI - Adobe Illustrator
  • .EPS - Encapsulated PostScript
  • .SVG - Scalable Vector Graphics
  • .PDF - Portable Document Format
  • .DXF or .DWG - AutoCAD

You can also include Graphics on your Solid works Models.

Please note: Saving a Raster image as any of the vector file formats will not create a vector graphic. You may need to contact the individual who created the graphic, in order to access the necessary files.
Raster (Non-Vector) (additional charges may apply)
  • .PNG - Portable Network Graphic
  • .JPG (.JPEG) - Joint Photographic Experts Group
  • .TIF (.TIFF)- Tagged Image File
  • .PSD - Photoshop

Images such as company logos must be provided electronically. Faxed images will not provide sharp enough resolution for our process to replicate. If text-only screening is required, simply provide information such as font type, font size, font color etc by fax or e-mail. Our tech support team will be happy to produce the required text-only screens.

Silk screening samples

Traxi Technologies KMV
Stanford University BlueWave Telecom
iBiquity Digital Rack Mount
Weogeo Server Zettabyte storage

Stocked Silk Screening colors

Below are the stocked silk screen colors we have. Protocase can provide custom silk screen colors upon request. Note: The color representations below may deviate from the actual color due to variations in browser software, video cards, and monitors

Opaque White, Epoxy Ink
Lemon yellow
Lemon Yellow, Epoxy Ink
Pantone 123 C Yellow
Pantone 123C Medium Yellow, Epoxy Ink
Pantone 142 Yellow
Pantone 142C, Epoxy Ink
Cool Grey 6C
Pantone Cool Gray 6C, Epoxy Ink
Brilliant Orange
Brilliant Orange, Epoxy Ink
Fire Red,
Epoxy Ink
Pantone 201C
Pantone 201C, Epoxy Ink
Pantone 649 C Blue
Pantone 649C, Epoxy Ink
Pantone Process Blue C
Pantone Process BlueC, Epoxy Ink
Pantone 355C, Epoxy Ink
Pantone 2623C (Purple), Epoxy Ink
Opaque Black, Epoxy Ink
Cool Grey
Pantone Cool Gray 10C, Epoxy Ink
Reflex Blue
Proto-Reflex Blue, Epoxy Ink


As with everything in the manufacturing process, there are always some variance between parts and images (spatial registration). We use an X,Y and angular micro-adjust, which allows for a respectable tolerance of 0.020" | 0.51mm, which is more than adequate for most applications.

However, there are certain situations that are much more sensitive to disparation. Please see diagrams below for examples.

Figure 1 - Eccentric Circles: Left 0.020" (0.50mm) eccentricity x & y, middle 0.002" (0.05mm) x & y Right 0.010" (0.25mm) eccentricity x & y

Please note: Images are a scaled representation of a CAD drawing of half-inch circles around quarter inch holes