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Membrane Type Comparator — TPU vs ePTFE, PU & PVC
Compare waterproof-breathable membrane families on mechanism and behavior, not adjectives. Pick what matters most to see which family fits.
| Property | TPU (ours) | ePTFE | PU | PVC |
|---|---|---|---|---|
| Structure | Non-porous hydrophilic | Microporous fluoropolymer | Hydrophilic coat | Plasticized |
| Breathability | Good (grade-tuned) | Highest | Lower | Minimal |
| PFAS / fluorine | PFAS-free | Fluoropolymer risk | PFAS-free | PFAS-free |
| Pore clogging | None (no pores) | Possible | None | None |
| Wash / UV life | High (ether) | High | Delaminates | Stiffens |
| Weldability | HF / heat / ultrasonic | Limited | Limited | HF |
| Relative cost | Mid | High | Low | Low |
Directional guidance for material selection; confirm final performance on the laminated construction and the finished product.
