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SIG FlexiTuff Film

SIG FlexiTuff Film is a one-layer film that uses linear-low density polyethylene to form a non-barrier film that provides strong seals and performance in hot-fill and aseptic applications.

  • Excellent performance in containing aggressive liquids
  • Available in gauges in 1.8-4.0 mils

Product Specifications

Known Process Applications


Fills heated, commercially-sterile product in non-sterile packaging. Can reduce product taste and texture.


Occurs when a product is filled into a package with no additional sterilization treatment.

Ultra-Clean (ESL)

Uses UV, laminar flow, and/or hydrogen peroxide to achieve high sterility levels for short shelf-life products.


Fills commercially-sterilized products into pre-sterilized packaging. Products can be held unopened without refrigeration.


1.8 mils


Yes - Surface Print



Film Process


Regulatory Compliance

Complies with USFDA and EU food contact regulations.

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Performance Data

Performance Properties Test Reference Typical Value
Tensile Strength ASTM D-882 MD: 3500 g/25mm | TD: 2900 g/25mm
Elongation at Break ASTM D-882 MD: 600% | TD: 700%
Puncture Resistance ASTM D-3420 540 g
Oxygen Transmission ASTM F-1927 N/A
Optical Density Tobias Densitometer N/A
Kinetic COF ASTM D-1894 0.14