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SUNSTONE ROOF
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Company Info
SUNSTONE ROOF [China (Mainland)]
Business Type:Manufacturer
City: Guangzhou
Province/State: Guangdong
Country/Region: China (Mainland)
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sunstone roof:
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| Test Items | Reference Requirement | Method Statement |
| Water resistance | After 240 h test ,there are no cracks ,bubbles ,peeling and softening precipitation on the composite layer .And a slight color and gloss change is allowed ,compared to the untested samples . | Put in (23±2)°Cdistilled water or deionized |
| Heat resistance | After(90±2)°C,240h heat test ,there are no cracks ,bubbles ,peeling and softening precipitation on the composite layer .And a slight color and gloss change is allowed ,compared to the untested samples . | Put in constant temperature drying oven test |
| Impact resistance | Under the height of 500mm and heavy cone quality for 1000g±1g shock ,Metal tile mineral grains no cracking and spalling phenomena | According to the standard to test the method |
| Low temperature resistance | After (-40±2)°C,24 h test , there are no cracks ,bubbles ,peeling and softening precipitation on the composite layer .And a slight color and gloss change is allowed , compared to the untested samples . | Put in refrigerator frozen test |
Alkali resistance (saturated Ca(OH)2 solution) | After 48h test,there are no cracks ,bubbles ,peeling and softening precipitation on the composite layer .And a slight color and gloss change is allowed ,compared to the untested samples . | Put in (23±2)°Csaturated calcium hydroxide solution |
Acid resistance (3%H2SO4 solution) | After 48h test ,there are no cracks ,bubbles ,peeling and softening precipitation on the composite layer .And a slight color and gloss change is allowed ,compared to the untested samples . | Put in (23±2)°Cenvironment ,using the method of drop test |
| Freeze-thaw resistance | According to the water soak [(23°C)for 18h,(-20°C) frozen for 3h ,(50°C) hot baking 3h] for a loop. After 20 freeze -thaw cycles , there are no cracks ,bubbles ,peeling and softening precipitation on the composite layer .And a slight color and gloss change is allowed ,compared to the untested samples . | According to the water soak[(23°C)for 18h,(-20°C) frozen for 3h ,(50°C) hot baking 3h] for a loop . |
| Salt spray corrosion- resistance (Neutral salt spray test) | After 240 h test , there are no cracks ,bubbles ,peeling and softening precipitation on the composite layer .And a slight color and gloss change is allowed ,compared to the untested samples . | According to the standard to test the metho |
