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We offer the highest quality Teflon® and high-performance film bags in a variety of material choices and thicknesses.

Teflon® Bags

Welch Fluorocarbon has been manufacturing the highest quality Teflon® Bags for 25+ years.

Teflon® (Fluoropolymer) Bags

Pricing & Standard Sizes
All of Welch Fluorocarbon’s Teflon® bags are fabricated using custom built specialty high temperature heat sealing equipment in our ISO 9001:2008 certified manufacturing environment. We can produce any size custom Teflon® bag, and we also offer a line of popular standard sized Teflon® bags.

Teflon® Bags exhibit numerous high-performance properties which make them an ideal choice for unique and demanding applications.

  • Cryogenically stable: -400°F(-240°C)
  • High maximum operating temperature: 400°F – 500°F (205°C – 260°C)
  • Highly resistant to virtually all chemicals
  • Chemically inert / non-contaminating
  • Low permeability to liquids, gases, moisture and organic vapors
  • Excellent weatherability
  • High dielectric strength
  • Superior antistick and low frictional properties
  • High transmittance of ultraviolet and all but far infrared

We specialize in heat sealing thin Teflon® films, but are able to heat seal a variety of high-performance thin films including, but not limited to:

  • Teflon® PFA Film
  • Teflon® FEP
  • Norton® FEP Film
  • Norton® MFA Film
  • Modified PTFE Film
  • Tefzel® EFTE Film
  • Tedlar® PVF Film
  • Kynar® PVDF Film


Teflon® is a registered Trademark of DuPont used under license by Welch Fluorocarbon, Inc. Tedlar® and Tefzel® are registered trademarks of DuPont. Norton® is a registered trademark of Saint-Gobain. Kynar® is a registered trademark of Arkema.

From Our Tech Blog

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