" />Water vapor transmission measures how much moisture passes through the geomembrane under controlled conditions.
Test Method
The specimen seals a test dish containing desiccant. The dish is placed in a humid environment, and weight gain over time is measured. Lower transmission means better moisture barrier performance.
Why It Matters
This property reflects suitability for vapor barrier and waterproofing uses. We provide test reports. See our product page or contact us.
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