Sacrificial Anti-Graffiti Coatings

Sacrificial coatings offer discreet, effective graffiti protection for surfaces where appearance cannot be compromised — including heritage stonework, sandstone, timber, and natural masonry.

Of all the anti-graffiti coating options available, sacrificial coatings are the most subtle — and for certain surfaces and situations, they are the only appropriate choice.

Understanding how they work, and where they work best, is the key to getting the right result.

Unlike long life coatings that sit on top of a surface as a permanent film, sacrificial coatings penetrate into the substrate — bonding with the surface material itself rather than forming a visible layer on top of it.

When graffiti occurs on a sacrificially coated surface, the removal process uses heated high-pressure water to lift both the graffiti and the top layer of the coating simultaneously. The graffiti and the coating are removed together — hence the term “sacrificial.” Once the surface has been cleaned, the coating is reapplied to restore protection.

This approach means the coating is working from within the surface rather than sitting on top of it — which is precisely why it’s the preferred option for heritage and natural stone surfaces where any visible film or sheen would be unacceptable.

Sacrificial coatings are best suited to surfaces where:

Appearance cannot be altered — the coating has a low sheen appearance and doesn’t significantly change the look of the surface, making it suitable for heritage buildings and sensitive stonework

Heated high-pressure water removal is safe — sacrificial coatings should not be used on painted walls or other surfaces where hot water pressure washing would cause damage

The surface is not frequently targeted — because the coating must be reapplied after each graffiti incident, they are most cost-effective on surfaces that are occasionally rather than repeatedly hit

A water-based, environmentally considerate product is preferred — sacrificial coatings are water-based and safe to apply in public spaces without specialist equipment or exclusion zones

Ideal surfaces and applications:

• Natural stone surfaces
• Brick including heritage ‘Old Red’ brick
• Concrete and render
• Timber
• Heritage listed buildings and structures

Coating lifespan
Sacrificial coatings have a lifespan of approximately four years under normal conditions. UV exposure gradually breaks down the coating over time, so reapplication is required every four years regardless of whether graffiti has occurred — or sooner if a graffiti incident has required removal.

Two coats required
Professional application requires two coats to achieve the necessary protection level. Proper surface preparation is essential — the surface must be free of flaky paint, moss, dirt, water stains, and debris before application.

Available in clear only
Sacrificial coatings are available in clear finish only. If a coloured coating is required, a long life coating is the more appropriate option.

Cannot be applied over existing graffiti
Like all anti-graffiti coatings, sacrificial coatings must be applied to a clean surface. Any existing graffiti must be removed before the coating is applied.

Reapplication after every incident
Each time graffiti is removed from a sacrificially coated surface, the coating is removed along with it and must be reapplied. This is an important consideration when assessing the ongoing cost of protection for high-risk surfaces — for frequently targeted locations, a long life coating may be more cost-effective.

• Virtually invisible on the surface — low sheen appearance that doesn’t alter the character of the building
• Water-based formula — safe to apply in public spaces and sensitive environments
• Suitable for heritage and natural stone surfaces where other coating types are not appropriate
• Protects against texta and marker pen graffiti effectively
• Brush, roller, or spray application
• Less expensive per application than long life coatings

• Must be reapplied after every graffiti incident — ongoing cost for frequently targeted surfaces
• Available in clear only — no colour options
• Coating life of approximately four years before UV degradation requires reapplication
• Not suitable for painted surfaces or any surface where heated high-pressure water removal would cause damage
• Cannot be applied over existing graffiti