Does 3D printed Alumide out gas after printing? Does 3D printed Alumide outgas or is it inert? I.e. If I printed a box with it and stored paper in that box for 100 years would the paper become damaged by out gassing? I noticed that NASA has a list of materials that out gas. But I'm not sure exactly what polymers are in 3D printed Alumide...

Alumide is, as this question explains made up entirely of Aluminium Grit and Polyamide 12 dust.

The Database contains one entry for Polyamide 12 (by filtering for it here):

![Polyamide 12 - ID GSFC4067 - MFR HUL - TML 0.76 - Category 0 - CVCM 0.02 - Space Code 1 - WVR N/A - Material Usage MOLD CPND - Cure N/A](

Some other items of similar material (Nylon 6 & Nylon 12) are also in the database:

![enter image description here](

As a result of the material being essentially aluminium and PA12, I would take the PA12 values for an estimation until the material was tested properly.