[Huizhou, China – November 2026] – For modern urban buildings, the exterior facade is not just a structural face; it’s a direct reflection of the city’s image. However, constantly exposed to vehicle exhaust, industrial dust, and the elements, building facades often turn dull and mottled within just a few years. High exterior cleaning costs and the dilemma of “getting older with every wash” are persistent headaches for property managers and owners. Recently, Guangdong Fortune Stone New Material Co., Ltd. released authoritative SGS test data, decoding the “self-cleaning secret” of its Flexible Stone and providing a revolutionary low-maintenance solution for global Facade Retrofit projects.
5 Extreme Contamination Cycles: Reflection Coefficient Drops by Only 12%
To scientifically evaluate dirt resistance, SGS conducted a rigorous “Dirt Pickup Resistance” test on Flexible Stone under the GB/T 9780-2013 standard. In the test, samples were repeatedly coated with standard test ash (simulating severe urban pollution) and then rinsed with high-pressure water, repeating this cycle 5 times. The SGS report (No. GZIN2510001940CM02-1_EN) shows that after these 5 extreme cycles, the decrease in the reflection coefficient of our Flexible Stone was merely 12%. This means that even in heavily polluted environments, the material retains 88% of its original brightness, making it extremely difficult for dirt to adhere to the surface.
Unlocking the “Lotus Effect”: Dense Surface Achieves Powerful Self-Cleaning
Behind this excellent 12% data lies a breakthrough in material science. Our Flexible Stone utilizes a special inorganic composite process, resulting in an extremely dense and smooth surface. When rain hits the facade, water droplets roll off quickly, much like on a lotus leaf, carrying away surface dust and grime. This “rain-wash self-cleaning” property means the building facade requires significantly less manual cleaning, maintaining a fresh look simply through natural rainfall.
Drastically Lowering Maintenance Costs, Aligning with Green Building Philosophies
Within the philosophy of Flexible Stone Engineering, a truly great material must not only be efficient to install but also low-maintenance in the long run. While traditional tiles or coatings need cleaning or renovation every 3-5 years, our Flexible Stone drastically reduces the Total Cost of Ownership (TCO) for properties, thanks to its ultra-low dirt pickup and 1500-hour weather resistance. Combined with its “3-Star Green Building Material Certification,” this is not just an economic win but a significant contribution to urban environmental sustainability.
“A building stands for decades. If scaffolding must be erected every few years just to wash the exterior, it incurs high costs and severe safety risks,” said the Director of Fortune Stone. “The dirt resistance of our Flexible Stone is not just about aesthetics; it’s about achieving ‘low maintenance and high durability,’ keeping our urban facades perpetually clean and vibrant.”
About Guangdong Fortune Stone New Material Co., Ltd.
Guangdong Fortune Stone is a leading manufacturer of Flexible Stone. The company is dedicated to providing highly efficient, full-lifecycle system solutions for global Facade Retrofit and sustainable buildings through fire-rated, ultra-lightweight, weather-resistant, and self-cleaning innovative materials.