L-726
Woven Prepreg, Aramid Prepreg
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Product Data Sheet Revised 4/13/09
Description

L-726 is a 275°F (135°C) curing phenolic prepreg with excellent fire, smoke, and toxicity properties. L-726 is available on 281 style aramid fabric or other styles of fabric as requested. L-726 is intended to be used as a single ply or multiple ply skin for aramid/phenolic honeycomb or aluminum honeycomb sandwich panels.

Advantages of L-726
  • When used with L-310 phenolic adhesive film, L-726 prepreg facings create sandwich panels with high peel strength and high toughness.
  • Processing of L-726 can be easily adapted to most heated presses or autoclaves.
  • L-726 is also an excellent laminating prepreg when heat resistance is a requirement.
  • Structure requiring ultra light weight and durability are candidates for the L-726 product.
  Physical Properties on 281 Style Aramid Fabric
  • Standard Weight: 0.070 lbs/ft2 (341 g/m2)
  • Standard Resin Content: 50% by weight
  • Volatile Content: 2-6%
  • Standard Tack: Low tack
  • Cured Ply Thickness: 0.009” (0.23 mm)
  • Other Weights, Resin Contents, and Fabrics are Available.
 Availability
  • Up to 60” width in rolls up to 100 yards long (152 cm x 91 m)
Shelf Life
  • 6 months at 40°F (4°C) or below
  • 14 days at Room Temperature (70°F or 21°C)
Cure Cycles
  • 60 minutes at 275°F (135°C), or
  • 120 minutes at 260°F (127°C).
Flammability
  • Self Extinguishing per FAR part 25.853
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NOTICE:Product data and parameters cited in this publication have been obtained in J.D. Lincoln, Inc. laboratories using the materials under carefully controlled conditions. The information, therefore, is believed to be accurate and correctly stated. Data of this type may be considered to be indicative of representative properties obtainable. J.D. Lincoln, Inc. cannot accept responsibility for the misapplication of these products, nor for their use under uncontrolled conditions. Numerical values resulting from the application of this material are dependant on processing details. It is recommended that the user develop his or her own application techniques and generate data consistent with his or her specific application and process.

 
       
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