Thermal grease, X23-8079-2, is a Non-Solvent thermal interface material developed and manufactured by Shin-Etsu Chemical Co., Ltd. Shin-Etsu MicroSi’s X23-8079-2 exceeds thermal management requirements of high-performance semiconductor devices. Through superior heat dissipation, the X23-8079-2 allows electronic devices to remain cooler and increases their long term reliability. Typical applications include semiconductor devices: power transistors, ICs, CPUs, stacked memory modules or any application that requires a thermal solution.

Product Characteristics:

  • Excellent thermal resistance (TR) and thermal conductivity (TC)
  • Easily applied via dispensing, stencil printing, or screen printing methods
  • Stable homogeneous mixture for consistent thermal performance
  • High volume production product from a proven industry leader
  • Available worldwide through established supply chain networks
  • RoHS and REACH Compliant
  • Shelf life 2 years


SEM’s X23-8079-2 material is available in several cost effective packages offering unique advantages:

  • Syringes offer most flexibility, with the ability to utilize the same product package for production and field requirements
  • Cartridges can be utilized with either manual, automated or silk-screening equipment. The delivery system allows dispensing of the material, while protecting the integrity and
    exposure level of the unused portion.
  • Bulk purchases with the lowest unit cost, are available for large scale production facilities where material is consumed at a rapid rate.
  • Shelf life is two years from the date of manufacturing if in the original package un opened and stored properly. For reference only, not a specification.

Material Properties

AttributesTypical Values
Shelf life (month)24
Viscosity (Pa·s)150
Specific Gravity2.6
Volatile Content (%)0.24
Thermal Resistance **(mm2-K/W) (BLT:23µm)5.8
Thermal Conductivity *(W/m °K) 5.0
Packaging DescriptionX23-8079-2
Syringes0.5 gm, 1.0 gm
Cartridges55 gm
Bulk1 kg can
Custom Sizes Available
Storage Conditions32°F to 85°F