e-Rad Series

Microwave Absorber Rubbers

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e-Rad are composed of a series of flexible elastomers filled with high dielectric fillers for superior absorption of microwave in low thickness configuration. The materials are designed for outdoor resistance and wide temperature range performance.
The materials are available in sheet form in every thickness with or without pressure sensitive adhesive. For demanding performance it can be easily bonded to metal surfaces by selected adhesives.
These materials are also available as custom molded parts for better adaption to complex shapes.
Material composition can be tailored for specific technical performance.
  Material Selection  e-Rad
e-Rad 181– Chloroprene Rubber
Excellent weather outdoor and marine environment resistance.
Good resistance to oil.
Good bonding to metals.
Limited low temperature resistance.
e-Rad 361– Silicone Rubber
Excellent heat resistance and low temperature resistance.
Excellent outdoor sunlight and ozone resistance.
Physical Properties Typical Values
Elastomer Type Chloroprene Silicone
Grade Name e-Rad 181 e-Rad 361
Color Dark Grey Dark Grey
Operational Temperature, °C (-40) to (+100) (-80) to (+200)
Hardness, Shore A, ± 5 80 60
Tensile Strength, Mpa (psi), Min 3.8 (560) 2.0 (290)
Elongation, %, Min 400 550
Specific Gravity, gr/cm3, ±0.2 4 3.7
Frequency, GHz 4 8 12 16 4 8 12 16
Attenuation, (dB/in) 130 210 260 310 110 200 255 265

NOTICE: The information contained herein is true to the best of our knowledge. However, since varied condition of potential use are beyond our control, users should make their own tests and evaluation to determine the suitability of our products in any specific situation and use. These products are sold without warranty, either expressed or implied, of fitness for a particular purpose or otherwise, except to the extent otherwise stated on Alvas quotation, order confirmation or invoice. We disclaim any liability incurred in connection with the use of information contained herein, or otherwise. All risks of such are assumed by the user.