MIL-PRF-22191 Type I Transparent Barrier Film
MIL-PRF-22191 Type IÂ barrier film is a QPL-approved, transparent high-barrier laminate engineered for moisture, oxygen, and grease protection while allowing visual inspection of packaged contents. This watervaporproof and heat-sealable film meets MIL-PRF-22191F Type I, Class 1 specifications for unlimited use across a range of military, aerospace, and industrial preservation applications.
Constructed as a flexible, multi-layer transparent structure, this material delivers durability, clarity, and strong seal performance ideal for vacuum packaging, inner wraps, and storage of sensitive components. Its low transmission rates make it a trusted choice for long-term moisture and corrosion prevention.
Typical Properties:
- Specification: QPL MIL-PRF-22191F, Type I, Class 1 (Unlimited Use)
- Construction: Transparent high-barrier polymer laminate
- Caliper: 4.0 mil (ASTM D2103)
- Yield: 6,345 in²/lb (Calculated)
- Puncture Resistance: 21 lbs (MIL-STD-3010)
- Tensile Strength (MD/TD): 37 / 28 lbs/in (ASTM D882)
- Oxygen Transmission Rate (OTR): 0.010 cc/100 in²/day (@ 0% RH, 23°C)
- Water Vapor Transmission Rate (WVTR): 0.003 g/100 in²/day (@ 90% RH, 40°C)
- Seal Strength: 18 lbs/in (ASTM F88)
- Suggested Seal Conditions: 375°F, 40 psi, 2.0 sec
Available Roll Sizes:
- 36" wide x 300' rolls (8135-00-079-2415)
- 36" wide x 150' rolls
- Custom widths available upon request
Key Features & Benefits:
- Meets MIL-PRF-22191F Type I, Class 1 military specification
- Transparent high-barrier film allows easy content identification
- Watervaporproof, greaseproof, and flexible
- Heat-sealable for strong, airtight packaging integrity
- Provides excellent moisture and oxygen protection for sensitive materials
- QPL-approved for unlimited military and industrial use
- Ideal for vacuum packaging, preservation bags, and moisture barrier wraps
Typical Applications:
- Packaging of electronic components, optical assemblies, and precision instruments
- Aerospace, defense, and export packaging
- Use with desiccants and MIL-PRF-131 outer barriers for full preservation systems
Royco Packaging stocks MIL-PRF-22191 Type I transparent barrier film for immediate shipment and offers custom roll slitting, sheeting, and bag fabrication to match your exact packaging needs.
Pair this material with other Royco preservation solutions, including:
- MIL-PRF-131 Class 1 and Class 3 foil barrier laminates
- MIL-PRF-121 kraft paper laminates
- VCI corrosion inhibitor materials
- MIL-D-3464 desiccants and barrier bags
For bulk pricing, technical assistance, or application support, call 1-877-MIL-SPEC to connect with a Royco Packaging specialist.
Royco Packaging — Mission Critical Protection. Made in the USA.

