L-525
Woven Phenolic Prepreg
Click For
Page 2
Product Data Sheet Revised 12/21/06
Description

L-525 is a 275°F (135°C) curing phenolic prepreg with excellent fire smoke and toxicity properties. L-525 is available on 7781 style glass fabric or other styles of fabric as requested. L-525 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-525
  • When used with L-310 phenolic adhesive film, L-525 prepreg facings create sandwich panels with high peel strength and high toughness.
  • Processing of L-525 can be easily adapted to most heated presses or autoclaves.
  • When tested per the FAA required OSU test and vertical burns, L-525 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: 1-4%
  • 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 275°F (135°C), or
  • 120 minutes at 260°F (127°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.

 
       
Website Copyright 1996-2008 by J.D. Lincoln Inc.
A Member of the Umeco Plc Group.