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SIG UltraBar Laminate

SIG UltraBar Laminate is a four-layer, foil based adhesive laminate film that is engineered for bulk institutional and industrial-sized bag-in-box packaging used in high-humidity environments.

  • Aseptic-capable
  • High-barrier capabilities

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.


4.9 mils


Yes - Reverse Print


Oxygen Transmission Rate (OTR)

Film Process


Regulatory Compliance

Complies with USFDA and EU food contact regulations.

UltraBar Film Diagram
Protein Shake Bag-in-Box
FourMountains hazelnut Coffee Creamer bag-in-box
FourMountains Bulk Tomato Sauce bag-in-box

Performance Data

Performance Properties Test Reference Typical Value
Tensile Strength ASTM D-882 MD: 21,500 g/25mm | TD: 21,400 g/25mm
Elongation at Break ASTM D-882 MD: 100% | TD: 90%
Puncture Resistance ASTM D-3420 15600 g
Oxygen Transmission ASTM F-1927 <0.2 cc 100% O2/m2/day
Optical Density Tobias Densitometer N/A
Kinetic COF ASTM D-1894 0.31