This fine mesh is precision-woven of a smooth polyester plastic (PET) monofilament and treated with a hydrophobic coating. It allows air and sound to pass but stops water, dust, and other contaminants. Be aware that water under pressure is able to can pass through the mesh. The mesh restricts airflow (and thereby sound
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Is there a material that is permeable to air but stops water? - Quora
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PE Porous Film (BREATHRON), Product Information, Materials
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PE Porous Film (BREATHRON), Product Information, Materials
Is there a material that is permeable to air but stops water? - Quora
