Treatment
|
Advantage
|
Disadvantage
|
| Hydrophobic treatment |
Low water vapour resistance |
Water resistance less than 50 hPa |
| Thick layer of PVC or PU |
Highest water resistance |
Very high vapour resistance |
| Thin layer of PVC or PU |
Low water vapour resistance |
Low water resistance,<30 hPa |
| Woven hydrophobic microfilament (0.2 dtex polyester) |
Low water vapour resistance, good water resistance,
no problems with manufacture of ready-made clothing and cleaning |
|
| Mechanical micropores (made by needle electrodes) |
|
High water vapour resistance, low water pressure resistance |
| Laminates with membrane (e.g. PTFE) |
Low water vapour resistance, high water pressure resistance |
Low elasticity of the membrane |
| Coatings with micropores (e.g. PU) |
Elasticity |
Compromise is necessary to achieve medium water vapour
resistance and medium water pressure resistance |
