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Mineral Wool – Rock Wool / Glass Wool
Mineral Wool (Rock Wool or Glass Wool ) is a fibrous material. Therefore, it has very good thermal insulation and sound absorption coefficients. The most important physical difference between rockwool and glasswool is the difference between their heat resistance. The service temperature for rockwool is max. 750℃ ,but, this value for glasswool goes down to 250℃. Rockwool can thermally stand up to 1000℃. Rockwool is a preferred insulation material to use in structures where combustible or flammable materials are stored. The fire resistibility of rockwool gets better when the insulation thickness is increased.
Mineral wool is cut and placed in panels in a fully automated production line, with fibers perpendicular to the panel surface in order to obtain a better compressive strength. Wool fiber cuts, which are sized to fit and fill the panel ribs, are placed in panels automatically with scattered joints.
Z-LOCK rock wool sandwich panels are consist of two layers of pre-panited steel sheets and expanded polystyrene core material. This kind of eps sandwich panels is introduced from Europe and it is popular and widely used there. Anyway, the eps sandwich panels with Z-Lock from China is more cost efficiency, so more and more European and companies from developed countries import this kind of Z-Lock eps sandwich panels from us.
Descriptions of Z Lock rock wool sandwich panels:
1. manufacturer of pre-painted steel coils: Zhongjie(preferred), Baosteel, Bluescope, and others.
2. coatings: zinc/Al-Zn
3. paintings: PE/SMP/HDP/PVDF
4. color of paintings: white, red, blue and any other colors based on quantity.
5. thickness of steel: 0.3mm-0.6mm
6. thickness of rigid rock wool: 50mm, 75mm, 100mm, 150mm and other thicknesses based on quantity.
7. density of rock wool: 80-120kg/m³
8. joint/connection: z lock
9. usage: wall panel
10. double sides filmed by pvc for protection of paintings
11. effective coverage width: 950mm/1150mm
12. illustrations and dimensions
z lock rock wool sandwich panels for wall
| Indicator | Unit | Density≥100kg/m³ | Density≥120kg/m³ | Standard |
| compressive strength | Kpa | 85 | 105 | EN826 |
| shearing strength | Kpa | 60 | 80 | EN12090 |
| strength of extension | Kpa | 170 | 220 | EN1607 |
| shot content | % | less than 5(coarse shot content>0.25mm) | ASTM C1335 | |
| less than 30(tiny shot content>63μm) | ||||
| K factor of rock wool | W/m*k | not more than 0.036 (the average temperature is 20 ° C) |
GB/T 10295 ASTM C518 |
|
| fire resistance | —— | incombustible | EN ISO 1182 GB/T 5464-1999 |
|
| Grade A | EN 1350-1 GB/T 8624-2012 |
|||
| fire endurance | FRL 30 to 240, according to the structure and thickness of sandwich panel | |||
| hygroscopic rate (weight ratio) | % | less than 1 | ASTM C1104 GB/T 5480.7 |
|
| hydrophobic rate (for hydrophobic products) |
% | more than 98 | GB 10299 | |
| aging rate | % | PREN 14509 | ||
| melting temperature | ℃ | more than1000 | —— | |
| fibre diameter | μm | 7 | —— | |
polyurethane edged(sealed) rock wool sandwich panels for wall
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