Dry ice blast cleaning is quickly establishing itself as a favored method of cleaning in mold remediation. Dry ice blasting is superior to cleaning mold compared to traditional labor-intensive techniques such as sanders, scrapers and wire brushes as it is common to see a 60 percent time savings over other cleaning methods.

Dry ice blasting is a process in which a blasting gun fires rice-sized dry ice particles at a high rate of speed to impact and clean a surface. The particles are accelerated by compressed air, just as with other blasting systems. Upon impact the dry ice goes from a solid to a gas without passing through a liquid phase.

When the dry ice changes from a solid to a gas, the volume expansion over surfaces such as concrete or stone efficiently results in a stripping effect removing the mold from the surfaces. Typical results show less than 1 percent of toxic mold spores remain.


posted on 2/5/2010