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Read the SGS residual indentation report for our Flexible Stone. Under a 133N load for 540 seconds, the material showed only a 0.17mm indentation, proving its high impact resistance and elasticity for Facade Retrofit.
1. Report Overview
This article presents the official SGS test report (Report No. GZIN2509001820CM02-1_EN) evaluating the residual indentation of our Flexible Stone. Conducted by SGS-CSTC Standards Technical Services Co., Ltd., the test simulates heavy localized pressure to determine the material’s ability to recover its original shape without permanent deformation. The excellent result confirms that our material is highly resilient against physical impacts, making it an ideal solution for Flexible Stone Engineering and Facade Retrofit projects.
2. Data Analysis: The Science of Impact Resistance
According to the test results, a 2.0mm thick Flexible Stone specimen was subjected to a localized pressure of 133 N (approx. 13.5 kg) for 540 seconds. After the load was removed, the residual indentation was only 0.17 mm.
Engineering Value for Facade Retrofit:
- Superior Resilience: A 0.17mm indentation is practically invisible to the naked eye (less than the thickness of two sheets of paper). This proves that the material can withstand daily physical impacts, such as hail, tree branch scratches, or accidental bumps, without leaving permanent dents.
- Enhanced Durability: During Facade Retrofit construction (using scaffolding or suspended platforms), materials can easily be pressed against rigid surfaces. The high elasticity of our Flexible Stone absorbs these stresses, ensuring a flawless and even surface after installation.
3. Test Methodology (测试方法)
The SGS evaluation was conducted strictly under the Chinese national standard GB/T 4085-2015 (Section 6.9).
- Test Standard: GB/T 4085-2015 Section 6.9
- Specimen Size: 60mm × 60mm × 2.0mm
- Indenter Diameter: 6.35 mm
- Applied Load: 133 N
- Load Time: 540 seconds
- Test Result: 0.17 mm (Falls within the acceptable standard range of 0.15mm < Ir ≤ 0.40mm).
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 (GZIN2509001820CM02-1_EN) should be referenced.
4. FAQ
Q1: What does “Residual Indentation” mean in building materials?
A: Residual indentation measures how much a material permanently deforms after a heavy, concentrated load is applied to its surface for a period of time. It is a key indicator of the material’s elasticity, hardness, and ability to bounce back.
Q2: Is 0.17mm a good result for Facade Retrofit?
A: Yes, it is an excellent result. 0.17mm is nearly imperceptible. This means that even if the exterior wall experiences localized impacts or heavy pressure, the Flexible Stone will not develop noticeable dents or permanent surface damage, ensuring long-term aesthetic quality.
Q3: How does this property benefit the construction process?
A: During Facade Retrofit, scaffolding or construction equipment might press against the installed panels. A highly resilient material prevents permanent marks or structural damage, reducing installation losses and labor costs for repairs.
Q4: How does Flexible Stone compare to traditional rigid stone in this aspect?
A: Traditional natural stone is rigid and brittle; localized stress can cause it to crack or break entirely. Flexible Stone is a composite material with internal elasticity, allowing it to absorb the impact energy, recover its shape, and maintain its integrity.