L-526
Laminating Phenolic Prepreg
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Product Data Sheet Revised 12/21/06
Description

L-526 is a 275°F (135°C) curing phenolic prepreg with excellent elevated temperature properties. L-526 is available on 7781 style glass fabric or other styles of fabric as requested. L-526 is intended to be used as a laminate for high temperature ducts, engine nacelle applications, or in honeycomb sandwich panels.
Advantages of L-526
  • When used with L-310 phenolic adhesive film, L-526 prepreg facings create sandwich panels with high peel strength and high toughness.
  • Processing of L-526 can be easily adapted to most heated presses, autoclaves, or ovens.
  • L-526 is an excellent laminating prepreg where heat resistance to 500°F (260°C) is a requirement.
  • When tested per the FAA required OSU test or vertical burns, L-526 will allow the designer to create structure which will meet or exceed these stringent requirements
  Physical Properties on 7781 Glass Fabric
  • Standard Weight: 0.098 lbs/ft2 (479 g/m2)
  • Standard Resin Content: 38% by weight
  • Volatile Content: 3-7%
  • Standard Tack: Low tack
  • 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)
 Cure Cycles
  • 60 minutes at 350 °F (177°C), or
  • 90 minutes at 275°F (135°C)
  Flammability
  • Self Extinguishing per FAR part 25.853

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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