Can dry ice clean a bronze monument without damaging patina?
Yes — biological growth and soiling removed; aged patina preserved.
Verdict
Yes
Patina preserved when pressure correctly tuned.
The detailed answer
Bronze monument cleaning is conservator-led dry ice work. The aged patina is part of the historical character — to be preserved, not stripped. Pellets at low pressure (50-70 PSI) lift biological growth, dust deposits and surface soiling without disturbing the bronze patina underneath. Particularly valuable for war memorials, civic statuary and heritage public art where conventional cleaning would alter the patina. Sample-test mandatory; conservator approval before any large-area work.
Related questions
Can dry ice clean a heritage sandstone facade without damaging the stone?
Yes — heritage-recognised method. Sample-tested, conservator-coordinated.
Can dry ice remove graffiti from heritage stone without ghosting?
In most cases yes — sample-test pressure, no chemical etching of substrate.
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