de-icing is our business.
Call us on: +44 (0)370 5329723

  • Over two million tonnes of salt are spread onto the UK roads each year. The majority is spread onto motorways, trunk roads and main roads. Less than a third of other roads are treated.


  • Salting UK roads costs more than £150 million per year.


  • Without adequate salting, traffic delays caused would cost UK plc £280 million every day.


  • Local authorities are bound by an Act of Parliament, passed in 2003, which states, "a highway authority are under a duty to ensure, so far as is reasonably practicable, that safe passage along a highway is not endangered by snow or ice."




  • In the winter of 2010/11 there were more than 15,000 admissions to hospital in England and Wales due to people falling over on snow or ice (data source: hospital episode statistics for England and Patient Episode database for Wales).


  • Approximately 70% of Compass Minerals' customers now take 6mm salt, which results in a reduction in windscreen damage and controls spread away from verges, which results in less wastage. The balance still uses 10mm.


  • 10mm salt may be better for spreading wider roads and for greater penetration on lying snow.


  • Compass Minerals supplies five grades of salt. Dryrox 6mm, Dryrox 10mm, Thawrox 6mm, Thawrox 10mm and Thawrox+ (6mm).
  • Thawrox+ is rock salt with a molasses-based additive called Safecote®, which improves the spread pattern and resilient properties of standard salt, allowing a reduction in the amount of salt used.


  • Dryrox has a lower moisture content than Thawrox. Thawrox is often taken to be stored in salt barns, whereas Dryrox is typically taken to be stored outside. However, it is recommended that salt should be stored undercover using either permanent fixtures or sheeting type products such as DryStore®.


  • For calibration of spreader vehicles, bulk density and flow characteristics are particularly important depending on the grade of salt used. The flow rate of damp salt is less than that of dry salt.