0009 at 10 GHz. Excellent chemical resistance, dimensionally stable, low moisture absorption. Stable dielectric constant and dissipation factor over a wide range of frequencies (1 GHz to 20 GHz) and temperatures (-40 °C to +125 °C). Alternative to Taconic TLY-5. This listing is for 1 panel of Low Loss PTFE RF Microwave 0.005/0.007/0.015/0.020/0.030/0.060/0.125 Double Sided 1 oz Cu 9×12. Prototype like the pros. Paramount prototyping boards are Grade A copper clad laminates used by PCB fabricators and university research labs. Please search’PARAMOUNT CCL’ for more sizes and copper cladding options.