Indium 9100 Indium Electrolyte

Indium 9100 Indium Electrolyte

Acidic electrolyte for high speed installations

Indium 9100 is used for the deposition of pure indium coatings in high-speed systems. The electrolyte is easy to use.

Indium 9100 has been specially developed for high-speed deposition in selective coating and continuous strip lines. Strong electrolyte movement (flow, gating) enables working with high current densities and stable long-term behaviour.

The purest, deposited indium coatings can be soldered and remelted very well. They have a constantly low contact resistance. This makes the process ideal for coating electronic components which can be remelted after coating.

The Indium 9100 process meets all requirements for press-fit technology.

(Photos: Possehl Electronics Deutschland GmbH, pretPin®)

Electrolyte characteristics

Electrolyte type


Metal content

20 - 80 g/l

pH value

1.2 - 2.2

Operating temperature

50 (30 - 65) °C

Current density range

3 - 30 A/dm2

Plating speed

0.3 - 2 µm/min

Anode material

Indium 99.99 or MMO 187 SO

Coating characteristics




99.99 wt.% In

Colour of deposit




Hardness of deposit

< 1 HV

Max. coating thickness

50 µm

Density of the coating

7.31 g/cm3


  • Acidic high speed electrolyte
  • White, bright and uniform coatings
  • RoHS compliant coatings
  • Use in high speed systems
  • Pure Indium coatings with excellent cold welding properties
  • Very good remelting properties
  • Can be used with indium or other insoluble anodes
  • Very low whisker formation compared to pure tin
  • Wide working window for all system types


  • Press-fit technology for PCBs


  • Produktblatt-indium-9100-en.pdf

Your contact person

Markus Legeler

Manager Sales International
T: +49 7171 607 204
F: +49 7171 607 316

Find a representative in your region


      Umicore uses certain monitoring and tracking technologies such as cookies. These technologies are used in order to maintain, provide and improve our services on an ongoing basis, and in order to provide our web visitors with a better experience.

      By clicking on the "Accept all" button you agree to the use of these cookies while using the website. For further information regarding how we use cookies and other tracking technologies, please see section 10 of our website privacy notice

          Necessary cookies are essential and help you navigate our website. This helps to support security and basic functionality and are necessary for the proper operation of our website, so if you block these cookies we cannot guarantee your use or the security during your visit.

          Cookies that help us to understand the behaviour of users of our website. This allows us to continuously improve our website to provide the best information in support of our project aims. These cookies also help us understand the effectiveness of our website. For instance these cookies tell us which pages visitors go to most often and if they get error messages from web pages.

          Cookies that deliver content to you based on your interests, which are assumed from your browsing history. Most Targeting Cookies track users via their IP address and, thus, may collect some Personal Data. Personal Data collected by Targeting Cookies may be shared with third parties, such as advertisers.