Our MIL-PRF-131L Class 1 materials can be precisely converted into: ✔ Custom barrier bags – Tailored to fit your product’s exact dimensions. ✔ Roll stock – Ideal for small batches or specialized applications.
Thanks to its inner polyethylene layer, this material self-seals effortlessly with a handheld heat sealer (best results with a straight-bar sealer applying heat from both sides). This versatility allows for the creation of custom vapor barrier bags, including those meeting Mil-DTL-117 specifications.
MIL-PRF-131L Class 1 is a high-performance, water-vapor-proof aluminum foil laminate, representing the peak of protective barrier technology. As a military-grade material, it must meet stringent specifications set by the U.S. Department of Defense (DoD) for use across all defense agencies.
These rigorous standards ensure unmatched protection and full traceability. At Creopack, we offer multiple QPD-listed materials approved by the U.S. Naval Labs Qualified Products Database (QPD) for MIL-PRF-131L Class 1 applications.
Key Update: As of April 2022, the specification transitioned from MIL-PRF-131K Class 1 to MIL-PRF-131L Class 1, maintaining the same performance requirements while streamlining the standard by removing Class 2 materials.
What makes MIL-PRF-131L the ultimate protective solution? This material delivers: ✔ Superior tear and puncture resistance – Built to withstand harsh handling. ✔ Unmatched barrier properties – Shields against moisture, corrosion, oxidation, and external contaminants.
It is ideally suited for large or high-value items requiring long-term protection during:
To earn a place in the U.S. Naval Labs QPD, MIL-PRF-131L materials undergo extensive testing. Every batch must match the tested sample exactly—any unapproved modification risks rejection and removal from the QPD.
Mandatory Testing Conditions:
At Creopack, we guarantee full compliance, ensuring your critical assets receive maximum, long-lasting protection.
We understand that you need fast service. That’s why we make sure to answer all requests right away.
To ensure quick turnaround times, we maintain an extensive inventory of desiccants, bags, roll stock, packaging machinery and more.
As a distributor, we can prep orders that fit your exact requirements. No order is too big or small!
We only work with reliable, industry-leading manufacturers, such as Accu-Seal, Clariant, Desiccare, PAC Machinery, PackRite, Zerust, and more.
For Canadian customers, our location allows us to offer minimal shipping prices and to avoid unexpected duties & brokerage fees.
Ideal for clients with limited space and recurring needs! We order large quantities, then send you small shipments of products as you need them. The remainder is stored at our Toronto or Montreal warehouse, ready to be shipped as your stock runs out.
Find out about specifications, optional features, compliance, shipping requirements, suppliers... about everything, really.
Need a price? We'll provide you with a quick quote, as well as a range of other compatible options, if required.
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A response within 24 hours. Every time. We understand that fast delivery times are important to you.
With over 40 years' experience in the industry, we can help you get up and running quickly. Contact us today to discuss your project.
