Official SGS Test Report: Flexible Stone Passes Extreme Temperature Change Resistance Test
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Read the SGS temperature change resistance report for our Flexible Stone. After 3 extreme freeze-thaw cycles (-18°C to 50°C), the material shows zero cracking or peeling, proving its reliability for harsh Facade Retrofit climates.
1. Report Overview
This article presents the official SGS test report (Report No. GZIN2510001940CM01-1_EN) evaluating the temperature change resistance of our Flexible Stone. Conducted by SGS-CSTC Standards Technical Services Co., Ltd., the test simulates extreme weather fluctuations by subjecting the material to repeated cycles of water immersion, freezing, and high-temperature drying. The results confirm that our material exhibits exceptional resistance to thermal shock, making it a highly reliable solution for Flexible Stone Engineering and Facade Retrofit projects in diverse global climates.
2. Data Analysis: Why Extreme Temperature Resistance Matters
According to the test results, the Flexible Stone specimens (150mm × 70mm × 7mm) underwent 3 complete freeze-thaw-dry cycles. The result showed no powdering, cracking, peeling, or blistering, and no obvious change in color.
Engineering Value for Facade Retrofit:
- Ultimate Freeze-Thaw Durability: In cold climates, moisture absorbed by building materials can freeze and expand, causing traditional tiles or coatings to shatter and peel. The excellent flexibility of our Flexible Stone allows it to absorb this internal stress, surviving temperatures dropping to -18°C and rising to 50°C without structural failure.
- Weatherproof Performance: Combined with our water absorption test (11.3%), this proves that the material remains physically and chemically stable under the most severe weather conditions, significantly extending the lifespan of Facade Retrofit projects.
3. Test Methodology
The SGS evaluation was conducted strictly under the Chinese construction industry standard JG/T 25-2017 and the client’s specific requirements.
- Test Standard: JG/T 25-2017
- Specimen Size: 150mm × 70mm × 7mm (3 pieces)
- Test Cycle Conditions:
- Immerse in 23°C water for 18 hours.
- Freeze at -18°C for 3 hours.
- Dry at 50°C for 3 hours.
(Steps 2 and 3 constitute one cycle; a total of 3 cycles were performed).
- Test Result: No powdering, crack, peeling, or blistering. No obvious change in color.
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 (GZIN2510001940CM01-1_EN) should be referenced.
4. FAQ
Q1: What does the temperature change resistance test simulate?
A: This test simulates extreme weather conditions, particularly in regions with harsh winters or significant day-night temperature differences. By repeatedly freezing, thawing, and heating the material, it evaluates whether the Flexible Stone can withstand thermal shock without cracking or peeling.
Q2: Why doesn’t Flexible Stone crack after freezing, unlike traditional materials?
A: Traditional tiles are rigid and cannot accommodate the expansion of freezing water. Our Flexible Stone has a micro-porous structure and high flexibility. When water freezes inside it, the material expands slightly and absorbs the stress, preventing cracks from forming.
Q3: Can this material be used in extremely cold climates like Russia or Northern Europe?
A: Yes. Having passed the freeze-thaw cycles down to -18°C without any structural failure or color change, our Flexible Stone is highly suitable for freezing climates. It has been successfully applied in various global Facade Retrofit projects exposed to severe winter conditions.
Q4: Does the high-temperature drying cycle (50°C) affect the material’s color?
A: No. The test report explicitly states that there was “no obvious change in color” after the drying cycles. Our inorganic pigments and advanced manufacturing process ensure the color remains stable under high UV and heat exposure.