Does dry ice blasting damage the substrate?
Generally no. There is an energy threshold at which disbonding will occur. When the disbanding threshold is lower than the damage threshold you can clean without damage. If the reverse is true, damage can occur. Most CO2 applications deal with production equipment (cast iron, tool steel, tool grade aluminium), so there is no damage. We also have success with softer substrates such as plastics, wiring, pure copper, and fabrics, but these must be examined on a case-by-case basis.