L-975
Woven Carbon Prepreg, Low Energy Cure
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Product Data Sheet Revised 12/21/06
Description

L-975 is a 175°F (79°C) curing, high peel strength, flame retardant, epoxy prepreg available on carbon fabrics such as 282 style or other styles as requested. L-975 is intended to be used as a single ply or multiple ply skin for foam-cored panels or balsa-cored panels.
Advantages of L-975
  • No adhesive is required because of the high peel strength and high toughness of the L-975 resin matrix. L-975 can be bonded directly to a variety of core materials.
  • Easy processing is another major advantage. L-975 can be cured with a vacuum bag, press, or autoclave type cures from 8 hours at 160°F (71°C) or in just 30 minutes at 250°F (121°C) with contact pressure (175°F (79°C) cure temperatures are suggested for urethane, balsa or PVC core).
  • L-975 is also an excellent laminating prepreg when high impact strength and high toughness are required.
  Physical Properties on 282 Carbon Fabric
  • Standard Weight: 0.072 lbs/ft2 (352 g/m2)
  • Standard Resin Content: 44% by weight
  • Standard Tack: High tack on one side
  • Cured Ply Thickness: 0.007” (0.178 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
  • 7 days at Room Temperature (70°F or 21°C)
Cure Cycles
  • 8 hours at 160°F (71°C), or
  • 6 hours at 175°F (79°C), or
  • 3 hours at 200°F (93°C), or
  • 30 minutes at 250°F (121°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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