Tunnel Lighting Protection Film: How Catena Solved Fixture Graffiti Fast

Dark transit tunnels are hazardous enough without vandals blacking out the lights. Here is how Catena Transportation used custom-fit 4-layer tunnel lighting protection film to wipe out spray paint graffiti in two seconds flat and keep roadways safely illuminated.

The Problem

Cleaning cured aerosol paint off industrial tunnel light fixtures is nearly impossible with standard maintenance methods. Harsh chemical graffiti removers craze and cloud polycarbonate lenses, while scrapers leave deep scratches that permanently ruin light distribution. When defaced fixtures become too dark to pass transit safety standards, crews are forced to shut down active traffic lanes, bring out bucket trucks, and unbolt entire fixture assemblies for replacement. This recurring teardown cycle burns taxpayer dollars, creates commuter gridlock, and leaves dangerous blind spots in the roadway.

Solution

Catena Transportation ordered custom-fit 4-layer TearOff protective film stacks engineered to cover their exact tunnel light fixture profiles. Made from optical-grade, silica-infused film, the multi-layer stacks mount directly over each luminaire lens without diminishing illumination output. When a fixture gets tagged with spray paint, soot, or marker graffiti, maintenance crews do not need caustic chemicals, scrapers, or replacement parts. A technician simply pulls the engineered corner tab—peeling off the defaced layer in two seconds to instantly restore 100% light output without disrupting traffic.

Results

• Instant Graffiti Abatement: Crews peel away heavy spray paint and marker tagging in two seconds flat.
• Zero Traffic Closures: Eliminates lane shutdowns previously needed to unbolt and replace defaced light lenses.
• Maximum Lumens Restored: Optical clarity ensures tunnel roadways remain brightly lit and code-compliant.
• Massive Maintenance Savings: Ends the expensive cycle of buying replacement OEM lenses and toxic chemical strippers.