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Advanced Honeycomb Technologies


AHK KRAFT PAPER/PHENOLIC COATED HONEYCOMB

AHK is a structural Kraft paper honeycomb which conforms to MIL-H-21040 C and ASTM E 1091. It is primarily used as a high strength low cost core material in Air Transportable Shelters for military. Not to be confused with commercial grade paper honeycomb, AHK is coated with phenolic resin after expanding and then heat cured imparting superior strength and water resistance to the material. The material exhibits high strength characteristics and is water resistant. It also provides good thermal insulation. It is available in two cell sizes and five densities to suit most purposes. Typical applications include light weight wall panels for military shelters, shelving, and non-structural facia panels for high rise construction.


PRODUCT DESIGNATION

A variety of cell sizes, paper weights, and resin coatings weights are available. Minimum strength characteristics are illustrated later in this document. The products are designated as follows:

AHK Advanced Honeycomb Kraft
3/8 Cell Size in inches
2500 2.5 lb. density in pounds per cubic foot


SPECIFICATIONS

AHK Kraft honeycomb conforms to MIL-H-21040 C and ASTM E 1091. AHK Kraft paper honeycomb has been found to be very effective withstanding hot/wet environments. Mechanical properties are found later in this document.


AVAILABILITY

AHK is supplied in standard sheet sizes of 48" L by 96" W. The sheet thickness can be custom cut from .250 inches to 18 inches thick depending on the material cell size and density.

Special sheet sizes, both larger and smaller are available on a special order basis. Because of the special size, a minimum order may be required.


SHEET SIZE TOLERANCES

Length (W) & Width (L): = -0 +4 inches
Thickness (T): = +/- .010 up to 4.00 inches
  =       .060 above 4.00 inches
Closer tolerances are possible and may carry a premium price.



MECHANICAL PROPERTIES OF AHK KRAFT PAPER HONEYCOMB

Product Designation Cell-Density

Compressive Strength Minimum

Shear Strength Minimum
Plate
Short Beam
L Direction
W Direction
L Direction
W Direction
Hexagonal Cell
Note 1
Note 2
Note 1
Note 2
Note 1
Note 2
AHK 2400-3/8-2.5
150
N/A
106
50
N/A
N/A
AHK 3000-3/8-3.0
210
198
140
75
85
57
AHK 3800-3/8-3.8
319
N/A
200
125
N/A
N/A
AHK 4000-3/8-4.0
340
404
225
130
180
113
AHK 6800-1/4-6.8
N/A
N/A
N/A
N/A
N/A
N/A

Note 1: Tested per MIL--H--21040C and MIL--STD--401B

Note 2: Tested per ASTM E 1091

Actual values obtained are normally significantly higher than values shown.

FOR INDUSTRIAL USE ONLY
The above is made in lieu of all warranties, expressed, or implied: Seller's only obligation shall be to replace such quantity of this product which has proven to not substantially comply with the data presented in this bulletin. In the event of discovery of a non-conforming product, Seller shall not be liable for any commercial loss or damage, direct or consequential, arising out of the use of the inability to use the product. Before using, Buyer shall determine the suitability of the product for their intended purpose, and Buyer assumes all risk and liability whatsoever in connection therein. Statements relating to possible use of our product are not guarantees that such use is free of patent infringement or that they are approved for such use by any agency. The foregoing may not be changed except by an agreement signed by an officer of Seller.

©2005 Advanced Honeycomb Technologies, Inc.