MIL-PRF-22191 Type II Transparent Barrier Film
MIL-PRF-22191 Type II, Class 2 barrier film delivers a combination of lightweight flexibility and moderate moisture protection, making it a trusted choice for packaging requiring visibility, clean presentation, and reliable vapor resistance. Manufactured to the U.S. Military’s MIL-PRF-22191F specification, this material is approved on the Qualified Products List (QPL) and meets strict DoD performance requirements.
Constructed as a transparent high-barrier laminate, MIL-PRF-22191, Type II is waterproof, greaseproof, and heat-sealable, offering a dependable solution for inner wraps, clear moisture-barrier bags, and sealed protective envelopes. Its clarity allows inspectors and technicians to identify components without breaking the seal—ideal for inventory control, kitting, and sensitive equipment storage.
Key Properties
- Caliper: 3.2 mil (ASTM D2103)
- Yield: 8,590 in²/lb (Calculated)
- Puncture Resistance: 19 lbs (MIL-STD-3010)
- Tensile Strength (MD/TD): 20 / 20 lbs/in (ASTM D882)
- Oxygen Transmission Rate (OTR): 0.12 cc/100 in²/day
- Water Vapor Transmission Rate (WVTR): 0.39 g/100 in²/day
- Seal Strength: 16 lbs/in (ASTM F88)
- Recommended Seal Conditions: 350°F, 40 psi, 1.0 sec
Why Choose MIL-PRF-22191 Type II?
- QPL MIL-PRF-22191F certified for government and defense packaging
- Transparent film for instant visual inspection
- Waterproof, greaseproof, flexible construction
- Heat-sealable for tamper-resistant, moisture-tight seals
- Excellent for inner wraps, liners, and lightweight barrier bags
- Ideal for electronics, optics, aerospace components, medical items, and sensitive assemblies
Applications
- Clear barrier bags and pouches
- Inner wraps in multi-layer MIL-SPEC packaging systems
- Inventory and component identification
- Export packaging requiring visibility
- Moisture-sensitive industrial and military parts
Available From Royco Packaging
Royco Packaging stocks MIL-PRF-22191 Type II for immediate shipment and can alos provide:
- Custom roll widths
- Flat-cut sheets
- Fabricated barrier bags
Enhance your packaging system with compatible Royco materials:
- MIL-PRF-131 foil barrier laminates
- MIL-PRF-121 kraft/PE laminates
- V3c and W5c Cartons
- MIL-D-3464 desiccants
- VCI corrosion-inhibitor materials
Speak With a Packaging Specialist
For bulk orders, converting options, or application support, call 1-877-MIL-SPEC. Our specialists will help you choose the right transparent barrier film for your mission-critical needs.
Royco Packaging — Mission Critical Protection. Made in the USA.

