IsoClad 933 laminates are non-woven fiberglass/PTFE composites for used as PCB substrates. The non-woven reinforcement allows these laminates to be used in applications in which the final circuit may need conformability. IsoClad 933 laminates use longer random fibers and a proprietary process to provide great dimensional stability and increased mechanical strength.


  • Low dielectric constant (Dk) of 2.33
  • Dissipation factor of .0016 at 10 GHz
  • Extremely low loss
  • Great Dk uniformity


  • Less rigid than woven fiberglass
  • Highly isotropic in X, Y and Z axis
  • Stable Dk over range of frequencies
  • Improved dimensional stability


Description Language File Type File Size
Data Sheet
IsoClad® Laminates Data Sheet English
IsoClad Series Laminates - PSIS English


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