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 Home > Expertise > Polymer Processing > Thin Film Welding


Polyzen is expert in thin film welding. RF welding is a dielectric heating process used to seal polar elastomeric films together with very thin, hairline seams that are soft and supple.  It is ideal for welding 2 or more layers of thin films together when making low pressure balloons, bags, and barrier sleeves for medical device assemblies. This process is versatile for low to high volume production levels.

Materials   Applications   Polyzen Advantage
Specialty Formulated TPE’s.
Laminated Films
Balloons – Multi Layer Articulated Balloons
Sheath – Scope Cover
Bladders, Multi Pocket, Control Expansion Containers
Barrier Sleeve for Scope Covers or Instrument Covers
Organ Bag, Specialty Bag, Blood Bag, Saline Bag, Nutrient Bag
Pharmaceutical Materials Storage Bags, Bioreactor Bag Liners
Ability to maintain uniform wall thickness
Attain a variety of shapes/sizes
Ability to achieve very thin seam (0.020”)