MIL-PRF-81705D Flexible Barrier Material

The barrier materials covered by this specification are intended for use in specialized military methods of preservation.  The combination of all performance characteristics of MIL-PRF-81705; electromagnetic interference attentuation; electrostatic shielding, static shielding; static decay; water vapor transmission rate; surface resisitivityl waterproofness; transparency; marking abrasion resistance; thickness; aging; seam strength and fabrication; breaking strength; puncture; blocking and curl resistance; contact corrosivity; delamination; water resistance of marking, provides the necessary requirements for protection from exposure to the extremes of the navy/naval aviation environment.  Navy/naval aviation items are exposed to high moisture, high salt concentration, transfer at sea, rough handling, and minimal storage conditions.  There are no commercial equivalents that meet the physical, mechanical, and corrosion requirements necessary to protect material that is exposed to the operational naval aviation environment.  Specifically, Specialized Method of Preservation, GX of MIL-STD-2073-1C use MIL-PRF-81705 as the premier source of barrier materials that provide watervaporproof and electrostatic discharge protection for applicable items encountering the above conditions.  MIL-PRF-81705 provides the building blocks for applying Electrostatic Discharge Protective techniques approved under MIL-STD-2073-1C.

Types:

Type I material is intended for use for watervaporproof, electrostatic and electromagnetic protection of microcircuits and semiconductor devices, such as diodes, field effect transistors, and sensitive resistors.

Type II material is inteded for use where transparency and static dissipaton is required and contact with oil or grease is not contemplated.

Type III material is intended for use where a transparent, waterproof, elecrostatic-protective and eletrostatic field protective barrier is required.