UV coating cement board exterior wall cladding marble grain colored

TEST   ITEMS

RESULT

PHYSICAL MECHANICS PROPERTY

DENSITY

≥ 1.4G/CM3

WATER CONTENT

≤ 10%

WATER ABSORPTION

≤ 28%

WATER IMPERMEABILITY

The duration of the test shall be 24h, traces of moisture may appear on the under surface of the sheet , but in no instance shall there be any formation of drops of water

IMPACT RESISTANCE

The surface of sheet doesn’t have penetrating crack when using once falling ball impact test

BENDING STRENGTH

>16MPA

FREEZING RESISTANCE

Without no crack and delamination after 25 times freeze thaw recycling test .

INCOMBUSTIBLE

GB8624 A GRADE

RADIOACTIVITY

Internal exposure index

≤ 1.0IRa

External exposure index

≤ 1.0Iγ

COATING QUALITY

GLOSS DEVIATION (60)

≤ 10

ADHESIVE FORCE ,LEVEL

≤ 1

PENCIL HARDNESS

≥2H

MORTAR RESISTANCE,24H

No changing

WATER RESISTANCE,168H

No abnormalities

ACID-BASE RESISTANCE,168H

No abnormalities

DAMP AND HOT RESISTANCE,1000H

No bubbles , no rust, no crack

COLD RESISTANCE OF THE HEAT CYCLE(TEN TIMES )

No abnormalities

POLLUTION RESISTANCE

PASS

DIRT-PICK UP RESISTANCE

≤ 10%

RINSING RESISTANCE (TIMES)

≥10000

SOLVENT(BUTANONE) WIPING TEST (TIMES)

≥100

SOLT FOG RESISTANCE ,4000H

No bubbles , no rust, no crack

ARTIFICIAL WEATHERING AGING RESISTANCE ,4000H

No bubbles , no falling off, no crack