Kevlar HoneyComb

Kevlar’s exceptional toughness, low dielectric properties and low thermal conductivity make it a unique material for a variety of structural and dielectric applications, including radomes, bulkheads and structures which must resist high force impacts. Ultracor utilizes low moisture (LMR) Kevlar 49 that reduces Kevlar’s absorption of moisture by 50%.

The below data are on our standard Kevlar product; however, do not hesitate to inquire about custom sizes and configurations.

Mechanical Properties at Room Temperature

  Compressive ASTM C365 Plate Shear ASTM C273
  Stabilized L Direction W Direction
Ultracor Product Code Construction Materials Strength (psi) Modulus (ksi) Strength (psi) Modulus (ksi) Strength (psi) Modulus (ksi)
UKF-171-1/4-2.3 Kevlar / Cyanate Ester 155 13.6 130 18.0 69 9.3
UKF-292-1/2-1.0 Kevlar / Cyanate Ester 54.2 4.8 44.7 9.1 23.8 4.4
UKF-319-1/4-2.8 Kevlar / Cyanate Ester 158 16.6 149 20.7 71 10.8
UKF-320-3/8-1.9 Kevlar / Cyanate Ester 151 13.2 103 15.7 59 8.9


For more information about our various products, please use the links below:


Ultracor products are designated by use of a series of letters and numbers, as follows:

UKF-171-1/4-2.3, in which:
“U” represents Ultracor Honeycomb
“KF” indicates that the material used is Kevlar Fiber
“171” determines the product code number under which the details of construction are documented.
“1/4” indicates a 1/4” cell size.
“2.3” indicates a nominal density in pounds per cubic foot. (lbs/ft³)

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Thank you very much for visiting our website. Please visit us often for updated information. If you have specific questions regarding pricing, availability, or other information on other Ultracor products, please call us at 209-983-3744 or send us a message.