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A GAME-CHANGING INNOVATION IN STEEL PROTECTION!
🚨 BREAKING NEWS! WORLD PREMIERE! 🚨
A GAME-CHANGING INNOVATION IN STEEL PROTECTION!
We knew it all along—now it’s official!
🔹 RD Coatings has achieved C5 Very High certification for its groundbreaking,
high-performance, water-based coating: RD-Monoguard!
🔹 This is a world-first: RD-Monoguard is the only single-pack,water-based paint to obtain this very high-level certification.
ONE PRODUCT, TOTAL PROTECTION!
RD-Monoguard is a unique, all-in-one solution that protects steel without the need for a specific primer or topcoat.
✅ One product that serves as primer, intermediate, and topcoat—available in any color you choose!
WHAT DOES THIS MEAN FOR YOU?
✅ Ready to use – no second component, no dilution required
✅ Fast & easy application– no more mixing mistakes
✅ Less waste – leftover paint stays usable for future projects
✅ Rapid drying – minimizes downtime and accelerates project completion
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A WATER-BASED SOLUTION:
SAFER & GREENER 🌍
🔹 Zero job-site hazards –no fire risks
🔹 Ultra-low VOCs & reduced CO₂ emissions – safer for workers, better for the planet
🔹 No solvents required – fewer health concerns, less odor, and a cleaner workspace
UNMATCHED DURABILITY IN EXTREME CONDITIONS
🏆 C5 VH – Very High certification means at least 25 years of steel protection in harsh coastal & industrial environments—before any major maintenance is needed!
FROM DIY TO MEGA PROJECTS: RD-MONOGUARD FOR ALL
Whether you're repainting a garden swing or protecting a massive steel bridge over the sea, RD-Monoguard delivers superior protection with unmatched ease!
✅ Easily adaptable to different corrosion classes and less aggressive environments—just adjust the number of coats and thickness!
🔥 Join the revolution in corrosion protection — (re)-discover RD-Monoguard today!
What Does C5 Very High Mean?
In the ISO 12944 standard, which defines corrosion protection for steel structures using protective paint systems, the C5 Very High (C5-VH) classification refers to the most severe atmospheric corrosion environments – C5 – with the demand for a long durability – Very High / VH – of the coating system.
C5 – Definition
This classification applies to extreme conditions characterized by high humidity, frequent condensation, and severe pollution levels.
C5 environments include:
- Industrial areas with high humidity and aggressive atmospheres, such as chemical plants and coastal industrial zones.
- Coastal regions with high salinity, where structures are frequently exposed to salt spray.
- The inside of buildings and factories with almost constant condensation or heavy pollution.
Durability Classes
The ISO 12944 standard also defines durability categories, which indicate the expected lifespan of a coating before requiring major maintenance:
- Low (L): up to 7 years
- Medium (M): 7-15 years
- High (H): 15-25 years
- Very High (VH): More than 25 years
A C5-VH system is designed for exceptional durability, capable of lasting over 25 years before requiring significant maintenance.
A Tougher Testing Standard for C5 Very High
The revised ISO 12944:2018 introduces a new, more demanding test regime (Test Regime 2). This method is significantly tougher than previous C5 High testing and includes a 2688-hour (112-day) cyclic aging test.
During this period, test panels are subjected to a continuous cycle of extreme conditions:
- 72 hours in a QUV test cabinet (ISO 16474-3 A1) to simulate UV exposure.
- 72 hours in a Salt Spray test (ISO 9227 5.2 NSS) to replicate marine and industrial atmospheres.
- 24 hours at -20°C ± 2°C to test resistance to low temperatures.
At the end of the testing period, panels are assessed based on their degradation (ISO 4628-2, -3, -4, -5). Corrosion in the scribe and adhesion values (pull-off test) are measured as well.
When the tested panels meet the standard's requirements, it means that the paint system can be recommended for these environments and lifespan.
What are the coating system with RD-Monoguard?
| Classification | Coating system – minimum dry film thickness | MNOC – Minimum number of layers |
| C5 Very High | 270 µ / 11 mils | 3 |
| C5 High / C4 Very High | 200 µ / 8 mils | 2 |
| C4 High / C3 Very High | 150 µ / 6 mils | 2 |
| C3 High | 110 µ / 4,5 mils | 2 |
Life expectancy of the system before major maintenance: Very High: above 25 years / High : between 15 and 25 years
Real-world experience
Successfully passing these tests is a major milestone, reinforcing confidence in the system’s performance. However, in our industry, real-world experience remains just as crucial and even more.
RD Coatings: Proven Performance, Decades of Innovation
RD Coatings has been at the forefront of high-performance waterborne coatings for over 25 years. In 2016, RD-Monoguard was already a breakthrough innovation, becoming later on the first of its kind to obtain an official C5 High certification under ISO 12944. At that time, the C5 VH classification did not yet exist.
Since its launch, RD-Monoguard has been protecting major infrastructures worldwide—from Europe to North America, the Middle East, Africa, and Asia—thanks to the dedication of the RD Coatings network and forward-thinking customers willing to embrace innovative technology.
A growing number of private and governmental organizations are now choosing RD-Monoguard for its cost-effectiveness, user-friendly application, and environmentally responsible formulation, ensuring long-lasting protection for their steel infrastructure.
Additionally, RD-Monoguard is fully compatible with other RD Coatings products, allowing for tailored solutions that meet the specific needs of each project.