MIL-PRF-81705 Type III, ESD Shielding Film

Built to meet the performance requirements of MIL-PRF-81705E Type III, MIL-PRF-81705, Type III is a high-strength, abrasion-resistant shielding material designed to prevent damage from electrostatic discharge, electromagnetic interference, and handling hazards. The film’s metal-in construction enhances shielding efficiency, yielding excellent ESD, EMI, and static decay performance.

This advanced laminate serves as a durable protective barrier for PCBs, electronic subassemblies, communication hardware, avionics components, weapons systems electronics, and other mission-critical devices. The material is free of primary amines, amides, and silicone compounds, ensuring compatibility with sensitive circuitry while maintaining compliance with military specifications.

Technical Properties

Electrical Performance:

• EMI Shielding: >10 dB (1–10 GHz), MIL-B-81705
• Surface Resistivity:
  • Outer: >1 × 10⁵ Ω/sq
  • Inner: <1 × 10¹² Ω/sq
• Electrostatic Decay: <2.0 sec (MIL-STD-3010, Method 4046)
• Capacitive Probe: <25 V (EIA 541)
• Energy Test: <10 nJ (EOS/ESD S11.31)

Physical Performance:

• Total Thickness: 3.0 mil (ASTM D374)
• Puncture Resistance: 13.0 lbs (MIL-STD-3010, Method 2065)
• Tensile Strength: 6530 psi MD / 5800 psi TD (ASTM D882)
• Optical Density: 0.4
• Light Transmission: 40%
• Heat Seal Range: 275°F–500°F (ASTM F88)
• Seal Strength: >10.0 lbs (ASTM F88)

Why Choose MIL-PRF-81705 Type III?

• Meets MIL-PRF-81705E Type III, Class 2 specifications
• Metal-in, 5-layer laminate creates an effective Faraday Cage
• Excellent EMI / ESD shielding and rapid static decay
• Strong puncture, abrasion, and tear resistance
• Clear enough for visual inspection (40% light transmission)
• Wide heat-seal range for fabrication of bags, liners, and covers
• Free of silicone, primary amines, and amides—safe for sensitive electronics

Typical Applications

• Printed circuit boards (PCBs)
• Electronic subassemblies and avionics modules
• Communications hardware and weapons systems electronics
• ESD-sensitive items requiring Faraday Cage protection
• Military, aerospace, semiconductor, and OEM electronics packaging

Available From Royco Packaging

Royco Packaging offers MIL-PRF-81705 Type III materials in:

• Standard and custom roll widths
  
• Custom-fabricated ESD-shielding bags and pouches

Pair this shielding material with other Royco MIL-SPEC packaging components:

• MIL-PRF-131 foil barrier laminates
• MIL-PRF-121 kraft/PE barrier papers
• MIL-PRF-22019 VCI barrier films
• MIL-D-3464 desiccants and integrated moisture-control systems

Speak With a Packaging Specialist

For application support, custom sizing, or bulk pricing, call 1-877-MIL-SPEC. Our specialists will help you build a complete MIL-SPEC compliant ESD-shielding and preservation solution.

Royco Packaging — Mission Critical Protection. Made in the USA.