Doff and Jos cleaning systems
Photos by Harris Digital Productions
The DOFF system complements the JOS system and is the natural answer to the removal of surface coatings such as bitumen, oil, grease and many other disfiguring materials which have become bonded to masonry and other substrates. A unique combination of heat and pressure is used to cut through and remove unwanted matter without eroding the underlying surface using specialised equipment which is fully adaptable to suit the conditions.
Sample Doff cleaning on the Monument
The JOS cleaning process gives a new dimension in cleaning technology doing no harm to the environment because it is chemical free and is a uniquely efficient and gentle cleaning system as the substrate is left undamaged
The JOS system is a low pressure vortex process which uses a mixture of air, fine inert powder and relatively small quantities of water and is particularly effective for the safe removal of carbon, dirt, scale, micro-organisms and all types of atmospheric pollution from brick, wood and stone.
Sample cleaning using the Doff system 15th October 2007
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Last updated:
29 November, 2008