CoolZorb™ 500

CoolZorb™ 500

Hybrid Thermal/EMI Absorber

CoolZorb 500 is a 2nd generation hybrid absorber/thermal management material that is used for EMI mitigation. The product is used like a traditional thermal gap filler between a heat source such as an IC and a heat sink or other heat transfer device or metal chassis. CoolZorb 500 also functions to suppress unwanted energy coupling, resonances or surface currents which cause board level EMI issues.

Features and Benefits

  • High thermal conductivity with good EMI suppression within 20-90GHz
  • Inherent surface tack typical of standard thermal gap fillers
  • Compliant with minimal component stress during assembly
  • Meets UL 94 V-0 flame requirements
  • Dual functional properties of thermal conductivity and EMI reduction provide two in one solution for easier design and assembly and lower cost of ownership
  • Improved reliability performance of electronics
    • Better signal integrity due to reduction of EMI
    • Consistent performance of electronics due to temperature stability and low outgassing properties of product
  • Improved EMC performance and resultant lower cost to meet compliance requirements
  • Environmentally friendly solution that meets regulatory requirements including RoHS and REACH


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Last Updated: 22/04/21

Technical Specification

Typical PropertiesColorGrey
Density (g/cc)3.50
Operating Temperature Max (Celsius)175
Operating Temperature Min (Celsius)-40
Outgassing CVCM (%)0.040
Outgassing TML (%)0.310
Electromagnetic PropertiesAttenuation @10GHz (dB/cm)15.4
Attenuation @20GHz (dB/cm)34.2
Attenuation @28GHz (dB/cm)48.1
Attenuation @39GHz (dB/cm)64.5
Attenuation @77GHz (dB/cm)106.4
Electrical Properties Volume Resistivity8.00 x10^13 Ohm-cm
Mechanical PropertiesCTE214.0
Hardness (Shore 00)60
Tensile Strength (Mpa) 0.1
DimensionsThickness Max (mm)3.00
Thickness Min (mm)0.50
Compliance Lead FreeYes
ROHS CompliantYes
UL Flammability RatingUL 94 V0


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EMI AttenuationmmWaveOptical ModuleThermal Transfer