L-751
Woven Epoxy Laminating Prepreg, Aramid
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Product Data Sheet Revised 4/21/09
Description

L-751 is a laminating grade, 250°F (121°C) curing woven aramid prepreg which utilizes a 100% solids modified epoxy resin matrix. L-751 is flame retardant per FAR part 25.853 and is suitable for construction of light weight aircraft components such as air conditioning ducts, fairings, door facings, and interior panels. L-751 can be cured over a broad spectrum of times, temperatures, and pressures.

Advantages of L-751
  • The designer is given a high strength to weight ratio to optimize the design of aircraft components.
  • L-751 uses a 100% solids resin system with less than 0.5% volatile content resulting in dense, void free laminates.
  • L-751 has excellent resistance to most fluids encountered in the aerospace environment.
  • L-751 is compatible with many adhesives and prepregs utilized in the aerospace industry today, enabling to be co-cured into final assemblies with ease.
  Physical Properties on 285 Aramid Fabric
  • Standard Weight: 0.072 lbs/ft2 (352 g/m2)
  • Standard Resin Content: 50% by weight
  • Standard Tack: Slightly tacky on one side
  • Cured Ply Thickness: 0.010” (0.254 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)
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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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