Transit scratchitti removal and glass resurfacing by controlled fire polishing

Seong Chan Jun, Shane Y. Hong

Research output: Contribution to journalArticlepeer-review


Scratchitti vandalism, a new type of graffiti vandalism, in public transits systems and city neighborhood is a serious problem. To solve this problem, an innovative approach was developed - controlled fire polishing, which incorporates a technique of localized softening and surface tension. Intensive heat is positioned near to the scratch marks on the glass panel. The heat melts a thin layer of glass into liquid, changing the glass's viscosity to a formable state. The glass is melted to a level close to the depth of the scratch, and allowed to cool down naturally. During the cooling process, the surface tension of the melted glass will even out the scratching indent. After cooling, the glass will be as even and smooth as it was originally. The process will enable the reuse of the damaged window/door and eliminate the otherwise waste by replacement new glass.

Original languageEnglish
Pages (from-to)468-477
Number of pages10
JournalJSME International Journal, Series A: Solid Mechanics and Material Engineering
Issue number3
Publication statusPublished - 2006

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanical Engineering


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