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UL CAP EVALUATION

LAMINATES AND PWBs


Repeated Flexing Test

Tests for PWBs and laminates require a conditioning period of 56 days. Due to this, the testing period may last as long as 6 months from the initiation of the application process to completion in some cases. If prompt results are necessary, we encourage using our CAP system for faster and more convient processing.

 


Tests for UL746E Laminates


TESTS APPLICABLE STANDARD
Bond Strength (BS) for PWBs UL746E
Vertical Burning (V) UL 94
Vertical Burning (V) after Thermal Shock UL 94
Vertical Burning for Thin Material (VTM) UL 94
Flexural Strength (FS) UL 764 A
High-Current Arc Ignition (HAI) UL 746A
Hot Wire Ignition (HWI) UL 746A
High-Voltage Arc-Tracking-Rate (HVTR) UL 746A
High-Voltage Arc Resistance (HVAR) UL 746A
Dielectric Strength (DS) UL 746A
High Voltage, Low Current, Dry Arc Resistance (D495) UL 746A
Comparative Tracking Index (CTI) UL 746A
Volume Resistivity (VS)/Surface Resistivity (SR) UL 746A
Long-Term Thermal Aging UL 746B
Cold Bend UL 746E
Repeated Flexing UL 746E
Coverlay Lamination UL 746E
Conformal Coatings UL 746E


Tests for UL796 Rigid Printed Wiring Boards (PWBs)


TESTS APPLICABLE STANDARD
Bond Strength/Delamination UL 796
Plating Adhesion UL 796
Conductive Paste Adhesion UL 796
Dielectric Material Evaluations:
> Thermal Cycling UL 796
> Long-term Thermal Aging UL 796
Short-term Evaluations:
> High-current Arc Ignition (HAI) UL 746A
> Hot Wire Ignition (HWI) UL 746A
> Comparative Tracking Index (CTI) UL 746A
> flammability UL 94
Conductor Adhesion:
> Cu Foil Type UL 796
> Paste Type UL 796
Long-term Thermal Aging UL 746B
Flammability UL 94


Tests for UL796/UL796F Flexible PWBs


TESTS APPLICABLE STANDARD
Bond Strength/Delamination UL 796/UL 796F
Conductive Paste Adhesion UL 796/UL 796F
Dielectric Material Evaluations:
> Thermal Cycling UL 796/UL 796F
> Long-term Thermal Aging UL 796/UL 796F
Short-term Evaluations:
> High-current Arc Ignition (HAI) UL 746A
> Hot Wire Ignition (HWI) UL 746A
> Comparative Tracking Index (CTI) UL 746A
> flammability UL 94
Conductor Adhesion:
> Cu Foil Type UL 796/UL 796F
> Paste Type UL 796/UL 796F
Long-term Thermal Aging UL 746B
Flammability UL 94
Ambient Bend UL 796/UL 796F
Cold Bend UL 796/UL 796F
Repeated Flexing UL 796/UL 796F
Coverlay Lamination UL 796/UL 796F
Flexible PWB and Stiffener Combination UL 796/UL 796F


For Further Details about these Tests, Contact:
Kuniko Ito (k-ito@chemitox.co.jp)