CoolZorb™ HD500

CoolZorb™ HD500

Hybrid Thermal/EMI Absorber

CoolZorb HD500 is a High Deflection version of the CoolZorb 500 hybrid electromagnetic absorber and thermal gap filler. 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 HD560 also functions to suppress unwanted energy coupling, resonances or surface currents which cause board level EMI issues. The high deflection property reduces mechanical stresses of the application, specifically targeting next gen high performance IC to avoid cracks or pin breaks.

Features and Benefits

  • High thermal conductivity with good EMI suppression within 20-90GHz
  • Inherent surface tack typical of standard thermal gap fillers
  • High deflection property reduces mechanical stresses of the application, specifically to avoid cracks or pin breaks
  • 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)3.39
Operating Temperature Max (Celsius)175
Operating Temperature Min (Celsius)-40
Outgassing CVCM (%)0.040
Outgassing TML (%)0.350
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 PropertiesVolume Resistivity8.80 x10^13 Ohm-cm
Mechanical PropertiesCTE153.0
Hardness (Shore 00)26
DimensionsThickness Max (mm)2.00
Thickness Min (mm) 1.00
ROHS CompliantYes
UL Flammability RatingUL 94 V0


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EMI AttenuationHigh DeflectionmmWaveOptical ModuleThermal Transfer