Inquiry on SLA Resin Options for High Vacuum Applications

Support & Troubleshooting Materials
1

Dear Formlabs Team,

We are evaluating SLA resin materials for use in a subsystem that will operate in high vacuum (LEO environment) and require compliance with ASTM E595 outgassing standards.

Could you please provide clarity on the following points:

  1. ASTM E595 Certification

    • Do you currently have any SLA resins (e.g., Tough, Rigid, Durable, High Temp, etc.) that have been tested and certified against ASTM E595 (low outgassing)?

    • If yes, kindly share the corresponding test reports / data sheets.

  2. Recommended Coatings for Vacuum Applications

    • If no ASTM-certified resins are available, what surface coating(s) do you recommend to mitigate outgassing for SLA-printed parts intended for high-vacuum use?

    • On which base resin would you recommend applying such a coating?

    • Please provide typical thickness ranges, deposition method, and compatibility details with enamel-coated copper (since the printed part may be mounted near copper windings).

1 Like
2

Hi gimbalspace,

Thanks for reaching out!
We do have a resin that has been certified against ASTM E595: Flame Retardant Resin. You can find details about its properties in the Technical Data Sheet.
As for coatings, we don’t have any recommendation at this point unfortunately.
I hope this helps!

Best,
Sophia

1 Like
3

Hey!

I can confirm that some of the resins have been tested against ASTM E595 by NASA - Outgassing Database | Goddard Engineering and Technology Directorate - search “Formlab” under the material section to see the results. The ones that passed are the Grey Pro resin (unfortunately not available on the Form 4) and the Rigid 10K.

Hope this helps!

C