CO2 blasting is a cleaning system that uses dry ice (solid CO2 in pellets). Dirt is removed both because solid carbon dioxide (T = -78°) makes it more fragile and thanks to the mechanical action of the pellet. A characteristic feature of solid CO2 is that from solid it turns directly to gas, leaving no residue to be disposed of. Because of this feature it is possible to do the cleaning on the production site, saving the time that would otherwise be necessary to disassemble and reassemble the parts to be cleaned. Because of the efficacy of cryogenics in removing dirt, the rapidity of execution and the absolute eco-compatibility of the treatment, today from the economic and environmental standpoints CO2 blasting is the most competitive technology.

SOL has applied CO2 blasting in numberless companies, to the cleaning of building façades and monuments, selling or renting the whole equipment or providing a complete cleaning service carried out by specialists.