MIL-PRF-131 Class 3 Barrier Material | Scrim Foil Laminate

MIL-PRF-131 Class 3 barrier material is a QPL-approved, military specification, scrim foil laminate designed to deliver watervaporproof, greaseproof, and mechanical protection with exceptional puncture resistance. Engineered for mission-critical export, storage, and preservation applications, it provides unmatched durability for heavy, sharp-edged, or bulky items that require long-term barrier protection. Constructed from poly-cotton scrim reinforced with polyethylene and aluminum foil, this laminate combines high tensile strength with low moisture transmission. The result is a tough, flexible, and heat-sealable material ideal for use as barrier bags, covers, or wraps in military, aerospace, and industrial environments. Typical Properties: Specification: QPL MIL-PRF-131L, Class 3, Type I Structure: Poly-Cotton Scrim / PE / Foil / PE Caliper: 13.3 mil (ASTM D2103) Yield: 3,270 in²/lb (Calculated) Puncture Resistance: >22 lbs (MIL-STD-3010) Break Strength: 66 lbs (MIL-PRF-131L)