L-542
Woven Vinyl Ester Prepreg

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Product Data Sheet Revised 2/11/08
Description

L-542 is a 275°F (135°C) curing vinyl ester prepreg with excellent laminating properties. L-542 is available on 7781 style glass fabric or other styles of fabric as requested. L-542 is intended to be used as a single ply or multiple ply laminate for the manufacture of high quality plastic detail parts.

Advantages of L-542
  • L-542 allows the designer to create parts with excellent dimensional stability while maintaining excellent electrical and mechanical properties.
  • Processing of L-542 can be easily adapted to most heated presses or autoclaves.
  • L-542 is also an excellent laminating prepreg when heat resistance is a requirement.
  • FR Option: A flame retardant can be added to L-542 to enhance its flame resistance called L-542FR.
  Physical Properties on 7781 Glass Fabric
  • Standard Weight: 0.098 lbs/ft2 (479 g/m2)
  • Standard Resin Content: 38% by weight
  • Volatile Content: 2-6%
  • Standard Tack: Medium to High
  • 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
  • 90 days at 40°F (4°C) or below , 150 days at 0°F (-18°C)
  • 7 days at Room Temperature (70°F or 21°C)
 Cure Cycle
  • 60 minutes at 275°F (135°C). Adjust pressure as needed.

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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