Deep graffiti scribing (sometimes called “deep scratch graffiti”) is a form of glass vandalism in which the tagger physically carves their mark deep into the surface of the pane rather than using paint or acid.

Key take-aways

• Depth and permanence distinguish deep graffiti scribing from ordinary scratches and from acid-etch tags.
• Because the groove penetrates far below the optical surface, remediation is labor-intensive—but still usually cheaper and quicker than ordering new tempered storefront glass.
• Protective films are the most cost-effective deterrent in areas prone to tagging; once the glass is restored, film replacement is far less expensive than a second round of deep-scratch repair.

If you’re sizing up damage, a quick rule of thumb is: if your fingernail “clicks” noticeably in the groove, treat it as deep graffiti scribing and call a restoration specialist rather than trying over-the-counter polishes.