Guangzhou (China). March 16, 2016.

According to the official report published by SGS-CSTC Standards Technical Services Co., Ltd., a construction material sample identified as MCM FLEX-CLAY, Unfired Flexi Clay Cladding & Flooring, demonstrated high performance in durability and resistance during a series of standardized tests.

The tests were commissioned by the client, Magic Stone Green Building Material Co., Ltd., located in Foshan, Guangdong Province, P.R. China. The testing period spanned over five months, running from September 9, 2015, to February 24, 2016.

Key Durability and Strength Indicators

The test report, which referenced standards such as ASTM and ANSI, indicated that the MCM FLEX-CLAY material possesses strong resistance to wear and climatic effects.

Among the most important results confirming the material’s strength and resilience are:

• Freeze-Thaw Cycling: Testing conducted with reference to standard ASTM C1026-13 showed minimal degradation. The weight loss recorded was only 0.42%, and the sample showed “No visible change” in appearance.
• Abrasion resistance: The mean abrasive hardness was determined to be 8, based on the ASTM C241/C241M-15 method.
• Static coefficient of friction: The material exhibited a high coefficient of friction, suitable for flooring applications, measuring 1.11 in the dry condition and 0.70 in the wet condition.
• Water absorption: The measured water absorption rate was 12.4%.
• Bulk specific gravity: The bulk specific gravity of the specimen was recorded as 1.83.

Resistance to Chemicals and UV Exposure

The product also demonstrated significant stability against external factors, including chemical agents and light-induced aging:

• Chemical resistance test: During testing (ANSI Z124.6-2007 Clause 5.5), the material showed “No visible change” when exposed to most reagents, including Naphtha, Ethyl alcohol, Household ammonia (10%), Acetone, Vinegar, and Hydrogen peroxide (3%). However, it was recorded as being “Lightly affected” by Citric acid (10%).
• Stain resistance test: The overall total rating for stain resistance was 76. The maximum depth of any remaining stain after cleaning did not exceed 0.101mm.
• Light Ageing Test-UV Exposure: After an exposure duration of 2500 hours (using ASTM G154-12e and related standards), the material maintained its color stability, receiving a Gray scale rating of 4.0 and a color change ($\Delta E^*_{ab}$) value of 2.6.

These comprehensive test results confirm the MCM FLEX-CLAY material meets the required standards for durability and longevity in cladding and flooring applications.