About Us

Key Dates


Continuing work started by the late Dr William Watson DSc CBE in the 1950's and expanded in the 1980's and 1990's, Watson Brown HSM Ltd was formed in England to develop and supply polymer recycling technologies based on the principles of mechanochemistry.


Watson Brown Ltd established a full subsiduary in Germany, based in Brandenburg, South of Berlin. This location was the first operational plant to provide HSM technology based services to Watson Brown's customers in Europe.


REP International, one of the industry's leading rubber equipment manufacturers, acquired Watson Brown HSM GmbH with a view to implement HSM machines and integrated systems globally.


Having spent many years developing machines, processes and applications based on HSM technology, both at laboratory and production scales, REP is now commercialising the technology by offering its customers services, materials and applications.

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