American Durafilm Co. Inc products

Solving a 50-Year-Old Problem. Once you put your critical or caustic sample inside the bag, how do you close it? The standard protocol has been to use a clamp made of some other material, or to purchase and operate expensive heat-sealing equipment. Both of these solutions come with a rash of problems and are inconvenient to use. American Durafilm Co., Inc. has finally solved the problem with the first and only 100% FEP Duralok™ technology. Duralok™ has solved the most pervasive problem that has plagued FEP and Kapton® bags since their inception almost 50 years ago. This custom addition allows any bag made from FEP or Kapton® film to be transformed into an easy-to-use and resealable container for use in labs or in the field for sampling. Once closed, the seal is liquid and airtight, but not rated for pressure. There are no special tools to operate or expertise required to ensure a proper seal. 

DuPont™ Tedlar® PVF film has been used in numerous commercial applications for over 50 years. It is a biaxially-oriented, highly functional, stable film that provides long-lasting finish. This high-performance material is sought after extensively for a wide variety of industrial market surfaces.