SI-COAT 528AG: Permanent Anti-Graffiti Coating for South Africa
Graffiti is a costly, recurring problem for property owners, municipalities, and facility managers across South Africa. Repeated removal using harsh chemical solvents is expensive, environmentally damaging, and provides no lasting protection. The graffiti always returns.
SI-COAT 528AG is a permanent, single-coat anti-graffiti protective coating that changes that equation entirely. One application protects surfaces for the long term, and graffiti is removed with nothing more than cold water at low pressure — no chemicals, no solvents, no environmental harm.
TSS is the exclusive Sub-Saharan Africa distributor for CSL Silicones, bringing SI-COAT 528AG to South Africa for the first time.
What Makes SI-COAT 528AG Different
Most anti-graffiti products are sacrificial — they are designed to be removed along with the graffiti, requiring reapplication after every incident. SI-COAT 528AG is a permanent, non-sacrificial coating. It bonds chemically with the host surface and remains in place through repeated graffiti removal cycles.
The coating’s silicone hydrophobicity means graffiti tags cannot bond properly to the protected surface. When graffiti is applied, it sits on top of the coating rather than penetrating the substrate. A cold water pressure wash at 1,200 psi is all that is needed to clean the surface. No chemical solvents are required, which protects the surrounding environment and reduces the ongoing cost of graffiti management significantly.
SI-COAT 528AG is a single-component, room-temperature vulcanising (RTV) silicone coating with 92% volume solids and a low VOC formulation of just 70 grams per litre — meeting California’s strict SCAQMD air quality standards. It is available in a wide range of colours and dries to a semi-gloss finish that enhances the appearance of protected surfaces.
Where SI-COAT 528AG Works
SI-COAT 528AG bonds to a wide range of substrates without the need for abrasive blasting or priming. It is suitable for concrete, brick, stone, metal, wood, fiberglass, and pre-existing coatings, making it the right solution for a broad range of applications.
Municipal infrastructure such as retaining walls, bridges, underpasses, and public buildings face persistent graffiti pressure in urban environments. Commercial property managers protecting building facades, signage structures, and perimeter walls benefit from the permanent protection and the elimination of costly chemical removal contracts. Heritage and aesthetic structures where chemical solvents would cause surface damage are particularly well suited to SI-COAT 528AG’s water-only removal process.
Key Performance Data
SI-COAT 528AG is a proven, tested product backed by CSL Silicones’ ISO 9001:2015 registered manufacturing standards. All available colours are tested to withstand 5,000 hours of accelerated UV weathering with minimal colour change — critical for South Africa’s high UV environment. The coating maintains temperature stability from minus 60 to plus 200 degrees Celsius, ensuring long-term performance across South Africa’s diverse climate conditions.
Application is straightforward using airless spray, brush, or roller. No primer is required on most substrates, and no abrasive blasting is needed. Surface preparation requires only cleaning to remove dirt, grease, and loose material. The coating is tack-free within 80 minutes and reaches full physical characteristics within seven days.
The Environmental Case for SI-COAT 528AG
Repeated graffiti removal using chemical solvents creates ongoing environmental impact. Harsh solvents enter stormwater systems, damage surrounding vegetation, and pose health risks to applicators and nearby communities. In environmentally sensitive areas such as Cape Town’s urban waterways and public spaces, the cumulative effect of chemical removal programmes is a growing concern.
SI-COAT 528AG eliminates the need for chemical removal entirely. Cold water at 1,200 psi removes graffiti cleanly from protected surfaces, leaving no chemical residue and creating no environmental harm. The low VOC formulation means the coating itself has minimal impact during application. For municipalities and property managers committed to responsible environmental management, SI-COAT 528AG is the responsible long-term choice.
Frequently Asked Questions
Does SI-COAT 528AG work on existing painted surfaces?
Yes. SI-COAT 528AG adheres to pre-existing coatings without requiring removal or abrasive blasting. Clean the surface thoroughly to remove dirt, grease, and loose material, then apply directly.
How long does SI-COAT 528AG last?
SI-COAT 528AG is a permanent, non-sacrificial coating designed for long-term service life. It is not removed during graffiti cleaning and remains bonded to the substrate through repeated removal cycles.
What if graffiti has been on the surface for a long time?
For best results, graffiti should be removed as soon as possible using a cold water pressure wash at 1,200 psi. If graffiti has been left for more than ten days, warm water pressure washing may be required. In rare cases involving specialty paints left to fully cure, a biodegradable surfactant can be used with a cleaning pad.
Is SI-COAT 528AG available in custom colours?
SI-COAT 528AG is available in a wide standard colour range including greys, whites, beiges, blues, greens, and earth tones. Custom colours are available through CSL Silicones. Contact TSS for colour assistance.
Can building owners apply SI-COAT 528AG themselves?
SI-COAT 528AG is intended for application by professional applicators using standard spray, brush, or roller equipment. TSS provides technical support and application guidance to ensure correct installation and maximum service life.
Protect Your Property for the Long Term
Graffiti removal is a never-ending cycle for unprotected surfaces. SI-COAT 528AG breaks that cycle with a single permanent application — protecting surfaces for the long term, eliminating chemical removal costs, and reducing environmental impact with every cleaning.
TSS supplies SI-COAT 528AG across South Africa and Sub-Saharan Africa as the exclusive distributor for CSL Silicones. To discuss your property’s requirements and get a tailored recommendation, contact us through our contact us page or visit our FAQ page for more information. Proud distributors of CSL Silicones.
To see more case studies please see ANTI GRAFFITI CASE STUDIES