Can dry ice remove graffiti from heritage stone without ghosting?
In most cases yes — sample-test pressure, no chemical etching of substrate.
Verdict
Yes
Sample-test pressure. Most heritage stone clean without ghosting.
The detailed answer
Graffiti removal from heritage stone is a frequent dry ice application. Pressure-washed graffiti removal pushes paint deeper into porous stone, leaving permanent ghosting. Acid removers etch the substrate. Dry ice lifts the spray-paint layer off the stone surface without chemistry attacking the substrate. Sample-test pressure first, especially on highly porous stone where some shadow can persist. For very porous stone we may combine techniques (dry ice + steam at very low pressure) to manage shadowing. Council preferred-supplier 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 clean a bronze monument without damaging patina?
Yes — biological growth and soiling removed; aged patina preserved.
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