Isola ASTRA MT77

Astra MT laminate materials exhibit exceptional electrical properties which are very stable over a broad frequency and temperature range. Astra MT is suitable for many of taday’s high speed digital and RF/microwave printed circuit designs. It features a Dielectric Constant (Dk) that is stable between -55C and 125C, up to 20 GHz. In addition, Astra MT offers a lower dissipation factor (Df) of 0.0017 making it a cost effective alternative to PTFE and other commercial microwave and high speed dgital laminate materials. Key applications include long antennas and radar applications for automobiles, such as adaptive cruise control, pre-crash, blind spot detection, lane departure warning and stop and go systems.


  • High thermal performance – Tg:200C (DSC), Td:360C (TGA@5% wt loss), Low CTE in the Z-axis 2.9% (55C-288C)
  • T260: 60+ minutes
  • T288: 60+ minutes
  • RoHS Compliant
  • Electrical properties – Dk: 3.00, Df: 0.0017 +/- 0.0005, Exceptional dielectric properties over a broad frequency and temperature range per IPC-TM-650-
  • Core Material Standard Availability – Thickness 0.005″, 0.010″, 0.020″, 0.030″ and 0.060″, Available in full size sheet or panel form
  • Copper Foil Type Availability –  VLP-2 (2micron)
  • Copper weights – 1/2, 1 and 2 oz (18, 35 and 70 micron) available, Heavier coper available upon request, Thinner copper foil available upon request
  • Industry Approvals –  UL File Number E41625, UL 94 V-0, 130 MOT