JOS procedure

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The JOS process has been used to clean sensitive surfaces since the late 1980s.

Air, water and granulate are mixed in a special patented nozzle and blown against the surface to be cleaned at low pressure (0.5 to 4 bar). A vortex of rotation is formed in the conical jet, which gently grinds off dirt on natural stone, metal or wood without damaging the underlying texture.

By changing the mixing ratio of water, air and neutral fine granulate, the process can be adapted to different surfaces. Special features compared to older jet cleaning methods are the low air pressure, the low water consumption (30 to 60 l per hour) and the possibility of metering air pressure, water pressure and the proportion of blasting material. The process is used, among other things, in the removal of graffiti , fire damage and the restoration of works of art made of natural stone .

literature

  • Helmut Weber (Hrsg.): Facade protection and building renovation: The guide for the renovation, conservation and restoration of buildings , Renningen-Malmsheim: expert-Verlag, 1994, ISBN 3-8169-0690-7 .
  • Bernhard Leidinger (Hrsg.): Damage management: measures to reduce damage - handling of frequency damage , Berlin: Erich Schmidt Verlag, 1998, ISBN 3-503-05036-1 .
  • Martin Lutz: Exam preparation in the building cleaning trade: Technical technology - materials science - protection provisions , Metzingen: Lutz books for cleaning and hygiene technology, 2010, ISBN 978-3-934939-04-2 .

See also

Sandblasting

Individual evidence

  1. ↑ Homepage of the Gebäudereinigung Schiersmeier GmbH, accessed on October 3, 2012 ( Memento of the original from September 5, 2007 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.  @1@ 2Template: Webachiv / IABot / www.schniersmeier.de
  2. ↑ baufachinformation.de of the Fraunhofer IRB, accessed on October 3, 2012 ( Memento of the original from March 3, 2007 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.  @1@ 2Template: Webachiv / IABot / www.baufachinformation.de
  3. ↑ Homepage of Bernd Mücke Holz- und Bautenschutz GmbH, accessed on October 3, 2012