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Glastic® 1580/1583


Glastic® 1580 is one of our Glastic® laminates and offers a superior combination of electrical and mechanical properties. Made from fiberglass-reinforced thermoset polyester resins, these UL®-recognized sheets blend excellent performance characteristics with economy.


Technical Specifications Glastic® 1580-1583

Test MethodUnitGuideline Value
Specific GravityASTM D 7921.83
Part Number1580 (1583)
NEMA Grade LI 1-1989NEMA LI-1GPO-3
Standard ColorWhite (Red)
UL Temperature Index - ElectricalUL 746B°C120
UL Temperature Index - MechanicalUL 746B°C140
UL Recognition File NumberE81928
Test MethodUnitGuideline Value
Flexural StrengthASTM D 790psi24,600
Flexural Strength @130°CASTM D 790psi8,470
Compressive StrengthASTM D 695psi31,200
Tensile StrengthASTM D 638psi8,400
IZOD Impact Strength (notched)ASTM D 256ft. lb./in.8.9
Shear StrengthASTM D 732psi12,000
Test MethodUnitGuideline Value
Coefficient of Thermal ExpansionASTM D 696(in./in.°C) x 10-52
Thermal ConductivityASTM C 1771.9
Test MethodUnitGuideline Value
UL Subject 94UL 94V0
UL Hot Wire IgnitionUL 746Asec.300+
UL High Amp IgnitionUL 746A200+
Oxygen IndexASTM D 2863%O239
Ignition Timesec.84
Burn Timesec.23
Test MethodUnitGuideline Value
Water AbsorptionASTM D 570% by wt.0.2
Test MethodUnitGuideline Value
Electrical Strength - Perpendicular S/T in AirASTM D 149Vpm425
Electrical Strength - Perpendicular S/T in OilASTM D 149Vpm577
Electrical Strength - Parallel S/S in OilASTM D 149kV47
Arc ResistanceASTM D 495sec.181
IEC Track Resistance (CTI)UL 746AV500+
Permittivity, 60 HzASTM D 1504.2
Dissipation Factor, 60 HzASTM D 1500.011
Dissipation Factor, MHzASTM D 1500.010
Permittivity, MHzASTM D 1504
Insulation ResistanceASTM D 257Ω x 1012823


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