China UV Coatings for Light Steel Keel Structure, Find details about China Calcium Silicate Board, Building Material from UV Coatings for Light Steel Keel Structure
| 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 information of drops of water | |
| IMPACT RESISTANCE | The surface od sheet doesn't have penetrating crack when ysing 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 | |
| INTERNAL EXPOSURE INDEX | <1.0IRa | |
| EXTERNAL EXPOSURE INDEX | <1.0IY | |
COATING QUALITY | GLOSS DEVIATION(60) | <10 |
ADHESIVE FORCE,LEVEL | <1 | |
PENCIL HARDNESS | >2H | |
MORTAR RESISTANCE,24H | NO changing | |
| WATER RESISTANCE,168H | No abnormailties | |
| ACID-BASE RESISTANCE,168H | No abnormalities | |
DAMP AND HOT RESISTANCE,1000H | No bibbles ,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 | Nobubbles,no rust,no crack | |
ARTIFICIAL WEATHERING AGING RESISTANCE,4000H | No bubbles, no falling off,no crack | |
Item | Calcium Silicate Boar | Gypsum Plaster Board | MagnesiumBoard | TKBoard(Glass Fiber Cment Board) |
| Raw Material | Cement ,Quartz Sand,Organic/Inorfil Cellulose Fiber | Gypsum,Paper | Magnesium Oxide,Magnesium Chloride | C-Glass,Short Mineral wool,Low Alkali Portland |
| Anti-Bending Strength(Mpa) | >12 | 4-5 | <12 | 6-8 |
| Fire-proof Rate | A-class incombustible(GB8624-1997) | Non-Flammable | Incombustible | Incombustible |
| Incombustibility(min) | >240 | 60 | 50 | 70 |
| Damp-proof Rate | After wetting, the strengthdrops by 20-40%,recovers by 100% after dryness | Distortion after wetting,beyond retrieve | Distortion after wetting,beyond retrieve | Distortion after wetting,beyond retrieve |
| Use Age | Used for many years | sagging because of absorbing the Moisture in the air,short lifetime | Sagging because of absorbing the Moisture in the air,short lifetime | Distortion after wetting,beyond retrieve, short lifetime |