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Hot Mounting

Hot mounting provides protection and support of the sample surface, makes it easier to handle the sample, allows for several small samples in one mount and gives uniform sizes for clamping in a sample holder. Hot mounting resins are to be used in a mounting press, where they are processed at high pressure and temperature to very uniform mounts ideal for examination in upright microscopes or other devices requiring specific sizes or shapes. Depending on your requirements, several different hot mounting compounds are available for your hot mounting process:

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Aka-Resin Epoxy is a black, mineral-filled thermosetting epoxy resin for the best possible mounting result with very low shrinkage and best edge retention. This allows for examination of the sample at very high magnifications and as there is no gap between resin and sample also cross-contamination is avoided.

Aka-Resin Melamine is a white, mineral-filled thermosetting melamine resin for universal mounting with very low shrinkage. Optimal for hardness testing of case hardened samples due to the contrast provided by the white colour.

Aka-Resin Acrylic is a transparent thermoplastic acrylic resin for crystal clear mounts. This is ideal for failure analysis or target preparation where observation of the sample is required.

Aka-Resin Phenolic SEM is a black, carbon-filled thermosetting phenolic resin for conductive mounting used in SEM work.

Aka-Resin Phenolic and Aka-Resin Phenolic-2, Black are black, wood-filled thermosetting phenolic resins for routine mounting of samples. Being inexpensive resins they are also ideal for back-filling when working with more expensive resins.

FAQ:

What is the difference between thermosetting and thermoplastic?

Thermosetting resins cure at a certain temperature and this process is irreversible. Thermoplastic resins soften at higher temperatures and harden or solidify again during cooling. This process is reversible, if the mount is not satisfactory you can place it back in the press and repeat the process.

What is back-filling?

Back-filling is used to combine the features of two different resins. Here are a few possibilities:

  • Have a high-quality resin like Aka-Resin Epoxy at the bottom of the sample for the best preparation result and fill with a low cost resin like Aka-Resin Phenolic or Aka-Resin Phenolic-2, Black to reduce the cost of your mount.
  • Fill the resin you normally use for mounting your sample, e.g. Aka-Resin Melamine to ⅔ of the normal height, insert a piece of paper with the identification of your sample and then top up with Aka-Resin Acrylic. The finished mount has a clear top and you can always identify your sample.

About us

Akasel is a Danish company dedicated to developing, producing and distributing high-quality consumables and optimised preparation methods for metallography. Akasel was founded in 2004 by Morten Damgaard and is now present in more than 30 countries through a network of highly competent dealers.

Akasel is the smarter alternative because we pay special attention to our customers, developing high-quality consumables to help the labs achieve optimum preparation results and maximum reproducibility.

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Contact info

Akasel A/S
Svogerslev Hovedgade 48
4000 Roskilde Denmark
info@akasel.com

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