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Read a document we created for the National STEM Learning Centre on moisture management materials
Gore-Tex
Gore-Tex has an ePTFE membrane laminated between layers of fabric. The porous holes in the ePTFE are small enough to allow body moisture molecules to travel through, but are too big to allow rain and wind through. This makes the fabric breathable, but water and wind resistant.
Use this activity sheet to test your learning. Click on the image to download the handout
Find out more about Gore-Tex
Testing the breathability of Tyvek
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