What is Molecular Outgassing? Outgassing is the physical process where trapped gases, residual manufacturing solvents, plasticizers, or moisture escape from a solid material and enter the surrounding atmosphere. This phenomenon accelerates significantly in environments with controlled airflow, varying temperatures, or low localized pressures. THE CYCLE OF OUTGASSING FAULT [Low-Grade Polymer] --> Releases Volatile Vapors (Outgassing) | v [Air Flow Circulation] --> Carries Vapors Past Filtration Systems | v [Critical Target] --> Residue Condenses on Lenses, Wafers, & Labs While HEPA filters are masterclasses at catching physical particles like dust or skin flakes, they are entirely porous to molecular vapors. Once a material outgasses inside a cleanroom, those volatile molecules circulate freely until they find a cool surface to settle on.
- In Semiconductor & Optics Fabrication: These micro-vapors condense onto precision lenses, mirrors, and silicon wafers, causing irreversible "fogging," chemical trace degradation, and wafer defects.
- In Pharmaceutical & Medical Device Environments: Outgassed compounds compromise sterile atmospheres, cross-contaminate micro-testing samples, and introduce unapproved chemical trace profiles into ultra-pure environments.
The Hard Numbers: CC Matting’s Verified Performance Originally developed by NASA to screen materials destined for specialized spacecraft and satellite payloads, ASTM E595 is the global benchmark for evaluating a material's volatile stability. To precisely match the operational realities of ambient microelectronic, medical device, and biopharma facilities, CC Matting underwent specialized ASTM E595 testing modified to a continuous 50°C thermal vacuum exposure.
- 0.29% Total Mass Loss (TML) Measures weight lost as gases escape. (Standard Limit: ≤ 1.0%max)
- 0.08% CVCM Collected Volatile Condensable Materials onto a plate. (Standard Limit: ≤ 0.10% max)
- 0.10% Water Vapor Regained Indicates moisture re-absorption post-test. Proves zero retention.
Future-Proofing Your Cleanroom Integrity
- Complete Zonal Isolation
- Zero Atmospheric Contamination
