Hydrophilic grades of Pebax^® extruded into a thin film or laminated on to a substrate offer excellent permeability to moisture vapor while remaining waterproof and offering an excellent barrier layer to bacteria. Pebax^® can be laminated on to synthetic nonwovens, wovens or any textiles with the help of several functional polyolefins, and does not require adhesives or bonding agents to adhere to these substrates.

Pebax^®, through its unique copolymer structure offers a perfect combination of mechanical strength, breathability, and ease of processing. Unlike microporous products, the monolithic structure of Pebax^® films is a barrier to water and bacteria while exhibiting a high level of MVTR (Moisture Vapor Transmission Rate). Each of these advantages makes breathable Pebax^® a material of choice in many applications such as construction wrapping, food packaging, medical, and sport clothing.   

Breathability can be described as the Moisture Vapor Transmission Rate (MVTR) and it represents the amount of water vapor that penetrates through a film or structure over a period of 24 hours. It is measured per ASTM E96 E/B/BW methods in g/m²/day at 50% or 90% R.H. and at 23°C or 38°C. Depicted in the graphs below, Pebax^® grades offer high levels of MVTR under different conditions, surpassing alternative microporous or microperforated technologies.