The term decontamination wash is common among detailers but may need some clarification for those not in the industry.

A decontamination wash is a multi-step system used to remove any mineral deposits, chemical residue, waxes, sealants, and various other contaminants that are present on even new vehicles. this process includes but is not limited to degreasing, clay bar treatment, iron removal, and a final hand wash and dry.