Aptra® Classic and Aptra® UV 8 are microporous polypropylene films produced exclusively in North America under stringent quality requirements by RKW AG Rheinische Kunststoffwerke.

Aptra® film is engineered with special polymer chemistry that uses less filler than conventional microporous films. This gives Aptra® improved moisture transport, excellent barrier properties, a superior non-abrasive surface and excellent bonding characteristics. This unique polymer chemistry allows Aptra® to be easily stabilized for outdoor applications while maintaining its superior barrier properties and moisture transport.


Aptra® has emerged as the industry leader in breathable roofing composites in Europe. Aptra® Classic has been used successfully for several years in disposable protective clothing. Aptra® films’ non-abrasive surface makes it the packaging film of choice when delicate surfaces need to be protected. These are only examples of how this versatile film can be used.