- Durable through institutional and normal home laundry with steam sterilization
- Fire Retardant – D-6413 vertical flame and for bedding 16 CFR 1632 and Cal 129
- Waterproof Hydrostatic resistance - range 15-100 PSI AATCC 127
- Breathable - MVTR (gram/meter2/25 hours) ASTM E 96
- Available in film thickness from 5 microns to 15 mils ASTM D1777
- Resistant to organic acids, mineral acids, and alkalis
- Resistant to mildew
- Offered in a variety of composites - fabric (knits, wovens, and nonwovens) to fabric, fabric to foam, fabric to film,
and many different combinations
- Available in colors (fabrics and films)
- Diapering / PUL
- Fire Retardant Work Wear
- Hunting & fishing garments
- Other Barrier Composites
- Ski wear
- Work Wear
Water Vapor transmission process
Some of Narcote’s lamination membranes / films include breathability or more technically referred to as Water Vapor Transmission / MVTR.
The principle of water vapor transmission from our hydrophilic membrane works like this. The most important atmospheric parameters are water vapor concentration and temperature. The physical process of vapor transmission is accomplished by absorption, diffusion and desorption Vapor enters the membrane and is transported along molecular chains of this block copolymer to reach equilibrium with the the outside atmosphere, sometimes referred to as reverse osmosis.
The higher the differential from each side of the laminate the greater water vapor transmission ratio (gms/m2/24 hrs.). Exact measurements must be made under controlled conditions. The membrane is waterproof and air tight, allowing only vapor transmission due to the differentials previously outlined.