L-525
Woven Phenolic Prepreg
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  Sandwich Properties*
Core: ¼” cell x 0.004” (6.35 mm cell x 0.10 mm) Aluminum Foil
Adhesive: 1 ply L-310 each side
Facings: 2 plies L-525-7781 each side
  • RT Flatwise Tensile Strength: 910 PSI (6.3 MPa)
  • RT Sandwich Peel Strength: 9 in lb/in (40 N/25 mm)
*Sandwich peel strength varies with the orientation of the fibers directly against the core and the test direction.
  • Fibers laid up parallel with the test direction produce minimum strengths.
  • Fibers laid up perpendicular to the test direction produce maximum strengths.
  • L-525-7781 sandwich peel strength ranges from 7-13 in lb/in (31-58 N/25 mm).
  Mechanical Data

 

LAMINATE PROPERTIES

PROPERTY

25 PSI (0.17 MPa) CURE

TEST METHOD

ULTIMATE TENSILE STRENGTH

 

 

Room Temperature (RT)

52 KSI (359 MPa)

ASTM D638

160°F (71°C)

50 KSI (345 MPa)

ASTM D638

RT(WET)

45 KSI (310 MPa)

ASTM D638

TENSILE MODULUS

 

 

Room Temperature (RT)

3.5 MSI (24 GPa)

ASTM D638

160°F (71°C)

3.5 MSI (24 GPa)

ASTM D638

RT(WET)

3.4 MSI (23 GPa)

ASTM D638

ULTIMATE COMPRESSION STRENGTH

 

 

Room Temperature (RT)

59 KSI (407 MPa)

ASTM D695

160°F (71°C)

56 KSI (386 MPa)

ASTM D695

RT(WET)

54 KSI (372 MPa)

ASTM D695

COMPRESSION MODULUS

 

 

Room Temperature (RT)

3.5 MSI (24 GPa)

ASTM D695

160°F (71°C)

3.5 MSI (24 GPa)

ASTM D695

RT(WET)

3.5 MSI (24 GPa)

ASTM D695

ULTIMATE FLEXURAL STRENGTH

 

 

Room Temperature (RT)

72 KSI (497 MPa)

ASTM D790

160°F (71°C)

70 KSI (483 MPa)

ASTM D790

FLEXURAL MODULUS

 

 

Room Temperature (RT)

3.5 MSI (24 GPa)

ASTM D790

160°F (71°C)

3.2 MSI (22 GPa)

ASTM D790

  

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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