Protect N – MIL-PRF-131K C1

Description

Protect N  – MIL-PRF-131K TI C1

NSN 8135-00-282-0565 Roll

Barrier Material: Watervaporproof, Greaseproof, Flexible, Heat-Sealable, Class 1

Structure description: Nylon/PE/Foil/PE

Physical Properties

08/03/07:9908- PROTECT N

Disclaimer:
The data presented refers to typical values only and should serve only as a guide and does not encompass normal variability, or constitute any warranty. We urge purchasers to conduct tests for suitability in their specific end use.

Available Sizes & Ordering

Protect N barrier material is sold in rolls with standard sizes of 36″ × 200 yards, 50″ × 100 yards, and 50″ × 200 yards, weighing approximately 55 lbs per roll. All rolls are shipped individually via UPS and can be converted into custom bags, tubing, or sheets upon request. Call 1-800-644-4032 for bulk pricing or custom quoting.

Suggested Applications

Protect N is used for long-term storage and transport of sensitive equipment, spare parts, and electronics across military, aerospace, automotive, and industrial sectors. Its rugged construction and ultra-low permeability make it ideal for environments with high humidity, salt spray, or temperature fluctuations—such as naval aviation and overseas shipping.

FAQs

What is MIL-PRF-131K and why is Class 1 important?

MIL-PRF-131K is a U.S. military performance specification for watervaporproof, greaseproof barrier materials. Class 1 materials, like Protect N, are general-use versions that meet the most stringent requirements for moisture and corrosion protection.

What types of items can I protect with Protect N?

Protect N is designed for preserving mission-critical components—from avionics and instrumentation to machined metal parts and munitions—during long-term storage, cross-country transport, or overseas shipping.

How do the physical properties affect performance?

The material’s 4.15 mil thickness and high tensile strength provide toughness, while extremely low OTR/WVTR values prevent oxygen and moisture ingress. These properties work together to minimize corrosion and degradation over time.

What are the recommended sealing conditions?

To achieve reliable, watertight seals, use a heat sealer set to 375 °F, apply 40 psi of pressure, and maintain contact for 1 second.

Proper sealing helps ensure no delamination and consistent barrier performance.

Can I get custom bag sizes or pre-cut sheets?

Yes. In addition to standard roll stock, Protective Packaging can fabricate bags, tubing, or cut sheets to your specifications. Contact us for design assistance and a quote.