Both HIPO CUT and HIPO CUT-W are high cutting pastes preferred for aluminium parts, such as bull bars and fuel tanks on trucks. Also used for any other metal when time is precious. The difference between the two products is the use of water in HIPO CUT-W opposed to mineral solvent in HIPO CUT. The water based product is healthier to use and free of Volatile Organic Carbon (VOC). This is a requirement in European countries and may be a requirement for Australia in the future.