Product information

An Argon-CO2 mixture of 20% Carbon Dioxide, 80% Argon. This product is delivered in a 50 litre cylinder. Argon-CO2 mixtures are normally used as a shielding gas in arc welding processes.


  • Argon-CO2 mix is a colourless and odourless gas
  • Argon-CO2 mix is slightly heavier than air and is an inert gas
  • Argon-CO2 mix is non-combustible
  • It's used as a shielding gas for welding, primarily to protect the molten pool against contaminants in the atmosphere
  • 80% Argon/20% CO2 mix is suitable for welding all un/low alloyed carbon steels
  • Unimix gives a very stable molten pool together with optimum energy-transmission


  • Suitable for MAG welding applications where an active shielding gas is required typically for low-alloy steels.
  • For your safety, the product is delivered in a Unitor exchange cylinder complete with barcode and unique cylinder serial number.
  • We trace and track all cylinders using our system to give you peace of mind.
  • We offer global availability through our Global Exchange Programme.


Safety Data Sheet (SDS)