What is a primary disadvantage of waterjetting?

A primary disadvantage of waterjetting relates to the potential for causing serious cuts. This method uses high-pressure water jets to remove surface coatings and debris, which can generate intense force. If not handled properly or if appropriate safety measures are not followed, the high-pressure water can lead to injuries, including cuts or puncture wounds. This risk necessitates thorough safety training and protective gear for operators, making it a significant concern when considering the overall safety of using waterjetting equipment in surface preparation.

The other options, while they may contain elements that can be part of the discussion regarding the process, do not capture the core issue of safety that is most pertinent when examining the disadvantages of waterjetting. For instance, the notion that waterjetting leaves a rough profile is related to specific project specifications but not inherently a disadvantage. Similarly, its affordability and ease of use are aspects that might be considered benefits rather than drawbacks.