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Indium (In) Foil

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Indium Foil is often used as thermal interface materials and sealing materials. Heeger Materials provides indium foils with high quality and at a competitive price.

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Please contact us if you need customized services. We will contact you with the price and availability in 24 hours.

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Indium Foil is made by pure Indium Ingot which is a very soft and shapable metal, it has great thermal conductivity used an inefficient heat sink for high temperature and cryogenic applications. Santech produces Indium foil in the various sizes listed as follows, the production process is very advanced to ensure the extremely precise dimension and high purity without glycerin and contamination. Indium foil is packed inside two hard plastic sheets to make sure the flatness and suitable for transportation.

  • Material: Indium (In) Metal
  • 7440-74-6
  • Purity: 99.99%, 99.999%,or customized
  • Density: 7.31 g/cm3 at 25°C
  • CAS No: 7440-74-6
  • Appearance: Silver White
  • Melting point: 156.6 °C
  • Boiling point: 2080 °C
  • Thermal Expansion: (25°C) 32.1
  • Thermal Conductivity: 0.818 W/cm/K at 298.2 K
  • Size: Customized
  • Triple point: 429.7445 K, ~1 kPa
  • Heat of fusion: 3.281 kJ/mol
  • Heat of vaporization: 231.8 kJ/mol
  • Molar heat capacity: 26.74 J/(mol·K)


Indium is most notably used in the semiconductor industry, in low-melting-point metal alloys such as solders, in soft-metal high-vacuum seals, and in the production of transparent conductive coatings of indium tin oxide (ITO) on glass. Indium is considered a technology-critical element.

Why choose us?

  • Strict quality control for procedures of raw material, process control, and pre-delivery. 
  • Each content of Cu, Fe, Pb, Cd, As, Al, Zn, Tl, Sn is less than 5ppm to the 99.99% grade. 
  • Great technical capability to be a valued and long-term supplier. 
  • Technical support: 24 hours technical support by e-mail or call. 

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