A protective anti-graffiti coating creates a barrier between paint and the surface underneath, meaning future tags can usually be wiped away with a solvent rather than requiring a full pressure and chemical removal process each time. It doesn't stop graffiti happening, but it makes dealing with it dramatically faster and cheaper afterwards.
It's most worth considering for properties that have already been targeted more than once, high-visibility commercial walls, or public-facing infrastructure like bus stops and underpasses that tend to be recurring targets regardless of location.
For a property that's never had an issue and sits in a low-risk area, it's a less urgent investment. But for anywhere with a history of repeat tagging, the coating often pays for itself within one or two future removals through reduced labour and time on site.
