L3-DST-SEAL-MAT
ESSENTIAL
ENVIRONMENTAL
Level 3 · hardware
Seal Material Library
Standardized Seal Material Library with ISRU Production Paths
Standardized library of seal materials with documented ISRU production paths — enabling on-Moon manufacture of replacement seals as primary stock depletes.
Purpose
Standardized library of seal materials with documented ISRU production paths — enabling on-Moon manufacture of replacement seals as primary stock depletes.
Context
Child of L2-DST-SEAL within the Lunar Ark system
Principles
- ▸Material classes: copper gaskets, stainless bellows, fluoropolymer alternatives
- ▸ISRU production paths: Cu/Fe from L1-MFG smelting; PFA via Earth import
- ▸Documentation per ECSS-Q-ST-70 material specs
- ▸Stock inventory tracked in L1-MFG
- ▸Long-mission resilience via on-site manufacture
Typical implementations
- ▸ECSS-Q-ST-70 space materials standards
- ▸NASA ISRU manufacturing studies
- ▸Industrial seal material standards
Lunar considerations
- ▸100-year mission requires ISRU replacement capacity
- ▸Cu/Fe seal materials producible from lunar Fe/anorthite
- ▸Polymer materials Earth-imported in spare bulk
Specifications
Functional
| primary function | Standardized library of seal materials with documented ISRU production paths — enabling on-Moon manufacture of replacement seals as primary stock depletes. |
| material classes | 6 |
Physical
| mass kg | 0 |
| materials | Cu gasket stock, 316L SS bellows stock, PFA O-ring stock |
| vacuum compatibility | True |
Operational
| power consumption w | 0 |
| thermal range c | -40, 70 |
| lifetime years | 100 |
| mtbf hours | 1000000 |
Interfaces
Provides
- Documented seal-material production paths
Requires
- Material stock inventory
Cite this entry
Lunar Ark Codex. "Seal Material Library" (L3-DST-SEAL-MAT). Retrieved 10 September 2026, from https://lunarark.com/entry/L3-DST-SEAL-MAT
Licensed CC-BY-SA 4.0. You may reuse and adapt this entry with attribution, under the same licence.