MIL-PRF-81705 Type I ESD Moisture Barrier Film

MIL-PRF-81705 Type I barrier material is engineered specifically for applications where ESD protection, EMI shielding, and moisture control are essential. This advanced laminate protects static-sensitive devices and assemblies from electrostatic discharge, electromagnetic interference, oxygen, and water vapor, ensuring safe long-term storage and transit of high-value electronics. Built with a multilayer structure of Met-PET / Polyethylene / Foil / ESD-Sealant, it combines a metallic moisture barrier with low surface resistivity layers that rapidly dissipate charge. The film is fully heat-sealable, enabling fabrication into ESD-safe barrier bags, pouches, liners, and covers used throughout defense, aerospace, semiconductor, and electronics-manufacturing supply chains. Typical Properties Caliper: 4.5 mil (ASTM D2103) Yield: 5,680 in²/lb (Calculated) Puncture Resistance: 19 lbs (MIL-STD-3010) Tensile Strength: 4,100 psi MD / 4,300 psi TD (ASTM D882) OTR: 0.0005 cc/100 in²/day (ASTM