Benchmark Cleaning Services Ltd are proud to include the DOFF system in our portfolio of services.The DOFF System is unique in achieving temperatures up to 150 degrees at the nozzle end – making it a ‘superheated water system’. Designed and developed to effectively remove paint, biological matter and general dirt and grime without causing harm or shock to the substrate.

DOFF is a steam-based stone cleaning system. It’s unlike any other steam system and can achieve temperatures of up to 150°C at the nozzle end – making it a ‘superheated water system’. The operator is able to vary the temperature and pressure to remove many different types of paint and biological matter.
Whilst the temperature

in the system is high, the pressure on the surface being cleaned is very gentle and the volume of water is low. The surface is therefore not saturated and will be dry within minutes.

The superheated water vapor will remove paint, moss, algae, fungi and other biological matter and will also kill off spores. This means there’s then no need to use a chemical biocide during the removal process or as a protection against further biological activity.