PolarTech, based in Esbjerg, Denmark, has developed and patented a cleaning technology which uses liquid CO2 for cleaning and maintenance processes.

PolarTech, based in Esbjerg, Denmark, has developed and patented a cleaning technology which uses liquid CO2 for cleaning and maintenance processes.

The company has developed a manual system that works like sandblasting, in principle. The equipment is connected to compressed air, electricity and liquid CO2 either from cylinders or larger tanks.

The CO2 is recycled from other industrial processes. PolarTech’s technology can minimise or even replace the use of other existing environmentally damaging cleaning processes.

One, of the many advantages of CO2 cleaning is, that the process is completely dry. No secondary waste is generated compared to jet washing, sand/soda/bead blasting or chemicals and solvents. The result is reduced costs of waste handling, a PolarTech press release explains.

CO2 blasting can remove surface material like varnish, grease, glue, rubber/plastic residues, release agents, soot etc.. The technology is used in more than 16 different industries like food, plastic/rubber, automotive, electronics, power stations, aviation to name a few. CO2 cleaning is equally effective in disaster remediation after fire and flooding.