370HR is a high performance 180°C glass transition temperature (Tg) FR-4 system for multilayer Printed Wiring Board (PWB) applications where maximum thermal performance and reliability are required. 370HR laminate and prepreg products ar manufactured with a unique high performance multifunctional epoxy resin, reinforced with electrical grade (E-glass) glass fabric.

This system provides improved thermal performance and low expansion rates in comparison to traditional FR-4 while retaining  FR-4 processability.


• High Thermal Performance

 Tg: 180°C (DSC)

 Td: 340°C (TGA @ 5% wt loss)

 Low CTE for reliability

• T260: 60 minutes

• T288: 30 minutes

• RoHS Compliant

• UV Blocking and AOI Fluorescence

 High throughput and accuracy during PCB

fabrication and assembly

• CAF Resistant

Enclosed is the datasheet of Isola 370HR PCB material for your reference.

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