Official SGS Test Report: Flexible Stone Survives 1500h Artificial Weather Aging
Meta Description:
Read the SGS weathering test report for our Flexible Stone. After 1500 hours of artificial climate aging, the material shows zero color change and no cracking, ensuring long-lasting durability for Facade Retrofit projects.
1. Report Overview
This article presents the official SGS test report (Report No. GZMR240601632402) evaluating the resistance to artificial weather aging of our Flexible Stone. Conducted by SGS-CSTC, the test subjected the material to 1500 hours of extreme UV radiation, high temperatures, and water spraying to simulate years of outdoor exposure. The results confirm that our Flexible Stone maintains exceptional color stability and structural integrity, making it a highly durable choice for Flexible Stone Engineering and Facade Retrofit applications.
2. Data Analysis: The Science of 1500-Hour Weather Resistance
According to the test results, the Flexible Stone was evaluated at 600, 1000, and 1500-hour intervals using a Xenon Weathering Tester (Model: Ci5000).
- 600h & 1000h: Grey scale 4-5, Color change rating 0 (No color change), Chalking rating 0, No cracking, swelling, or flaking.
- 1500h: Grey scale 4-5, Color change rating 0 (No color change), Chalking rating 2 (Slight chalking, self-cleaning in rain), Appearance: No cracking, swelling, or flaking.
Engineering Value for Facade Retrofit:
- Zero Color Fade: A color change rating of 0 after 1500 hours proves that the material’s inorganic pigments and digital printing technology are immune to UV degradation. It will not fade even under harsh sunlight.
- Structural Safety: The fact that there is no cracking or flaking ensures that the Facade Retrofit system will not experience peeling or falling hazards over time, ensuring long-term building safety and reducing maintenance costs.
3. Test Methodology
The SGS evaluation strictly followed the Chinese construction industry standard JG/T 24-2018 (Section 6.18) and GB/T 1865-2009 (Cycle A).
- Test Standard: JG/T 24-2018 & GB/T 1865-2009 Cycle A
- Equipment: Xenon Weathering Tester (Ci5000)
- Exposure Cycle: 102 min light at (65±2)°C BST, (50±10)% RH + 18 min light and water spray.
- Irradiance: 0.51 W/(m²·nm) @ 340nm
- Total Exposure Period: 1500 hours
- Test Result: Passed with excellent color retention and structural integrity.
Note: The test report explicitly states that it is intended for internal quality control and R&D. For official bidding or compliance verification, the specific SGS report number (GZMR240601632402) should be referenced.
4. FAQ
Q1: What does 1500 hours of artificial weathering actually mean?
A: In a laboratory setting using a Xenon arc lamp, 1500 hours of continuous exposure to UV light, heat, and water spray simulates several years of real-world outdoor exposure. It proves that our Flexible Stone is highly resistant to extreme weather conditions and prolonged sun exposure.
Q2: Will the Flexible Stone fade after being installed outdoors?
A: No. According to the SGS report, the color change rating after 1500 hours was 0 (No color change). Our material uses stable inorganic pigments that resist UV degradation, ensuring the building’s facade remains vibrant for years.
Q3: Why is weathering resistance important for Facade Retrofit?
A: Facade Retrofit projects are costly and require long-term durability. Materials that degrade, crack, or fade under the sun will require premature replacement or painting. The exceptional weathering resistance of our Flexible Stone guarantees a maintenance-free lifespan, making it a highly cost-effective solution.
Q4: The report mentions a “Chalking rating of 2” at 1500 hours. Is this a problem?
A: A chalking rating of 2 indicates very slight surface chalking. In real-world applications, this is easily washed away by rain and does not affect the appearance or performance of the material. More importantly, the report confirms there is no cracking, swelling, or flaking of the material.