Engrave and Fill

To create Engrave and Fill marking, your parts are laser marked or machined engraved, and then the laser-engraved sections are filled with ink, according to your specific requirements.

Engrave and Fill is available on aluminum.

engrave and fill

Limitations & Constraints

Maximum Part Size 28” x 31” x 6.5” (711.2mm x 787.4mm x 165.1mm)
Minimum Material Thickness 0.051” (1.295mm)
Minimum Engraving Depth 0.015” (0.381mm)
Minimum Line Thickness 0.03” (0.762mm)
Minimum Spacing Between Letters 0.025” (0.635mm)

• Depending on the style and height of the font you select, your line thickness must be at least 0.030” (0.762mm)

• Positional tolerance for Engrave and Fill is the same as our Laser Marking tolerance: +/- 0.020” (+/- 0.508mm)


We can ink fill any substrate and finish that already qualifies for either laser marking or machined engraving.

In addition to no finish aluminum, you can apply Engrave and Fill on many different finishes:

Fill Colors

List of Colors

For your Engrave and Fill ink colors, you may choose from any of our stocked silkscreen colors.

In order to create the best contrast (which is required by MIL-STD-130), we recommend choosing white or black ink fill, depending on the finish of your parts.


ProtoSpace Engrave and Fill is a form of marking that is compliant with the following standards:

• MIL-STD-130
• A-A-56023D
• A-A-00208D (US Department of Defense Property)


Laser Marking and Engrave and Fill are permanent marking methods for applications requiring MIL-STD-130 (Table II).

This standard provides criteria for the selection of the application process, as well as all other specific requirements that will be part of the deliverable item, such as marking protocol, content, font size, type, location, etc.


Simply stating in the product definition data that the marking be in accordance with MIL-STD-130 is not sufficient. The item identification marking requirements must be determined by the Design and/or Acquiring Activity in their contractual instruments, and tailored to meet the needs of their specific application.

ProtoSpace is recognized solely and exclusively as the Manufacturer.

The customer is recognized as the Design Activity. They retain full design and quality assurance control, as well as full responsibility to the acquiring activity for the delivered product.

Let's Get Started

We believe the onboarding process should be as simple and hassle-free as possible.

Our team can process all of your paperwork to get the ball rolling in order to serve your custom manufacturing needs.