We have 3 materials certified to MIL-PRF-81705 requirements, including the ONLY material on the market that certified to MIL-PRF-81705 Type III. These materials are also available as sheets, tubing, bags or rolls.
Bags made from MIL-PRF-81705 are certified to MIL-DTL-117
Bags can be made in ANY SIZE or configuration. If you don’t see the size you need listed, we can make it! Just give us a call at 1-800-644-4032. Sizes listed are in inches.
2 x 3
2 x 4
3 x 3
3 x 5
4 x 4
5 x 5
6 x 6
5 x 7
8 x 8
8 x 10
9 x 9
10 x 12
10 x 14
12 x 12
12 x 15
12 x 20
18 x 20
20 x 20
AND LARGER
No Size is TOO big. Just ask.
(THIS IS AN EXCERPT OF MIL-PRF-81705 PERFORMANCE SPECIFICATIONS AS PROVIDED BY THE US GOVERNMENT. FOR THE COMPLETE AND CURRENT DOCUMENT, VISIT THE US DEPARTMENT OF DEFENSE ASSIST.DLA.MIL)
NOT MEASUREMENT SENSITIVE
MIL-PRF-81705D
w/AMENDMENT 1
14 July 2004
SUPERSEDING
MIL-PRF-81705D
3 September 1998
PERFORMANCE SPECIFICATION
BARRIER MATERIALS, FLEXIBLE, ELECTROSTATIC PROTECTIVE, HEAT-SEALABLE
This specification is approved for use by all Departments and Agencies of the Department of Defense.
1. SCOPE
Scope. This specification establishes the requirements for heat-sealable, electrostatic protective, flexible barrier materials used for the military packaging of microcircuits, sensitive semiconductor devices, sensitive resistors, and associated higher assemblies. In addition, the type I materials provide for watervaporproof protection and attenuation of electromagnetic radiation.
2. REQUIREMENTSQualification – The barrier materials furnished under this specification shall be products that are authorized by the qualifying activity for listing on the applicable qualified products list before contract award.
Material – Barrier materials shall be made from such materials and by such processes as to ensure compliance with the performance requirements of this specification.
Construction – Barrier materials shall be constructed of one or more plies in any manner which ensures compliance with the performance requirements of this specification.
– Type I. Butting of type I component materials or the finished product is not permitted except in the direction perpendicular to the rolling direction. When a butt weld is made on the finished product or any ply thereof, the areas shall be externally flagged with color markers to prevent use of that portion of the roll.
– Type II. Type II barrier material shall be transparent, clear, or tinted any color. The appearance shall be the same throughout the material. The materials shall have no talc or other powdered substances applied to the surfaces.
– Type III. Type III barrier material shall be transparent, clear, or tinted any color. The appearance shall be the same throughout the material. Butting of component materials or the finished product is not permitted except in the direction perpendicular to the rolling direction. When a butt weld is made on the finished product or any ply thereof, the areas shall be externally flagged with colored markers to prevent use of that portion of the roll.
– Splices. A roll shall not contain more than 3 splices (4 pieces) and each piece shall be not less than 45 yards in length. Splices within rolls shall be even the entire width of the roll material and shall not come apart during unwinding of the roll. Rolls containing splices shall be flagged at both ends of each splice with colored markers to indicate splices within the roll. Barrier material in flat cut sheets shall not contain splices.
Form – The barrier material shall be furnished in rolls or flat cut sheets as specified in the contract or delivery order. Rolls of type II and type III material shall be furnished in the form of sheeting or lay flat tubing as specified in the contract or purchase order.
– Rolls. Unless otherwise specified, the width of roll material shall be 36 inches, with a tolerance of plus or minus 1/4 inch. The average length of roll material shall be not less than 200 yards. The length of any individual roll shall be not less than 195 yards. The roll material shall be uniformly wound on nonreturnable cores. The core’s inside diameter shall be not less than 3 inches, with a tolerance of plus 1/8 inch. The length of the core shall be equal to the width of the roll material, with a tolerance of plus 1/8 inch. The core shall be rigid to prevent distortion of the roll during use and shipment conditions. Each roll shall be restrained to prevent unwinding.
– Sheets. When flat cut sheets are specified, the length and width shall be as specified by the acquiring activity. If the length and width tolerances for cut sheets are not specified the tolerance for each shall be plus 1/4 inch or minus 1/8 inch. Flat cut sheets shall be evenly stacked.
Sealing – The material shall exhibit no delamination of the sealed area when sealed according to the manufacturer’s recommended conditions (see 4.5). Each roll or package (flat cuts) of barrier material shall include a tag secured to the core of rolls, or sheet inserted in the package of sheets with the sealing instructions for impulse seals and for heat-sealing on rotary, band and jaw type sealing equipment. The tag or sheet shall be visible upon opening the unit package.
Identification of material – The material shall have two groups of markings in block form and in machine direction. Group A marking shall state the specification number, type, class, manufacturer’s name, manufacturer’s designation, month and year of manufacture, and lot number. The letters and figures shall be clear, legible, and shall be not less than 1/8 inch high. Group B markings shall identify the protective qualities of the materials as follows: For type I – EMI/STATIC SHIELD, for type II – STATIC DISSIPATIVE, and for type III – STATIC SHIELD. These letters shall be not less than 1/2 inch high. The two groups of markings on all three types of material shall be either printed using a water-resistant ink or embossed and shall be visible if the material is fabricated into a bag or pouch. The two groups of markings shall be printed or embossed sequentially, complete, and continuous lengthwise with a space of one inch between groups. A complete group of markings shall appear once in each six inches of width of the roll and flat cut. An example of the identification is as follows:Performance requirements – The performance of the barrier materials shall conform to the requirements specified in table I, when tested in accordance with 4.6.
Workmanship – Barrier material surfaces shall be free from any foreign matter. Barrier material shall be free from holes, tears, cuts, sharp creases, wrinkles, or other imperfections. The barrier material shall be cut and trimmed of any selvage.
TABLE I. Performance requirements.
Characteristics
Applicable to Types
Requirements
Seam Strength
1. As received material sealed & tested:
a. At room temperature (separation-inches)
b. At 100°F and at 160°F (separation-inches)
2. Sealed before aging at 160°F for 12 days and tested:
a. At room temperature (separation-inches)
b. At 100°F and at 160°F (separation-inches)
3. Sealed after aging at 160°F for 12 days and tested:
a. At room temperature (separation-inches)
b. At 100°F and at 160°F (separation-inches)
I, II, III
No separation
No separation
No separation
No separation
No separation
No separation
Seam Fabrication
I, II, III
No leakage at double seam junction
Water vapor transmission rate (WVTR)
1. After room temperature flexing:
a. As received (gms/100 sq. in./24 hrs.)
b. Aged (gms/100 sq. in./24 hrs.)
2. WVTR after low temperature flexing: As received (gms/100 sq. in./24 hrs.)
I
0.02 (max)
0.02 (max)
0.03 (max)
Blocking resistance
I, II, III
No blocking, delamination, or rupture
Resistance to Curl
I, II, III
(Class 1)
No curl in excess of 5% or curl back upon itself
Contact corrosivity
I, II, III
No corrosion, etching, or pitting
Aging resistance
I, II, III
(laminated only)
No delamination or rupture
Thickness
I, II, III
0.015 inch (max)
0.006 inch (max)
Water resistance of markings
I, II, III
(printed only)
Markings shall be clear and legible
Marking abrasion resistance
I, II, III
No smearing, blurring, or loss of legibility
Water resistance
I, II, III
(laminated only)
No delamination
Transparency
II, III
Lettering shall be readable 3 inches behind material
Oil resistance (delamination)
I, II, III
(laminated only)
No leakage, swelling, delamination, or embrittlement
Waterproofness
II, III
No dye penetration
Puncture resistance
I, II, III
10 lbs (min)
6.0 lbs (min)
Static decay
I, II, III
The decay shall be not greater than 2.0 seconds
Electromagnetic interference (EMI) attenuation
I, III
25 db (min)
10 db (min)
Surface resistivity
I, II, III
Inner: Greater than or equal to 1×105 ohms/sq but less than 1×1012 ohms/sq. Outer: less than 1×1012 ohms/sq
Electrostatic shielding
I, III
30 volts peak (max)
NOTES(This section contains information of a general or explanatory nature that may be helpful, but is not mandatory.)Intended use – 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 attenuation; electrostatic shielding; static decay; water vapor transmission rate; surface resistivity; 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 materiel 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.
Performance requirements – The performance of the barrier materials shall conform to the requirements specified in table I, when tested in accordance with 4.6.
Workmanship – Barrier material surfaces shall be free from any foreign matter. Barrier material shall be free from holes, tears, cuts, sharp creases, wrinkles, or other imperfections. The barrier material shall be cut and trimmed of any selvage.
Performance requirements – The performance of the barrier materials shall conform to the requirements specified in table I, when tested in accordance with 4.6.
Workmanship – Barrier material surfaces shall be free from any foreign matter. Barrier material shall be free from holes, tears, cuts, sharp creases, wrinkles, or other imperfections. The barrier material shall be cut and trimmed of any selvage.