Items | Parameters | Test Result | |
Chemistry Properties | It's not2+Al2O3 (wt%) | 50~64 | 57.13 |
CaO+MgO (wt%) | 25~33 | 27.61 | |
Fe2O3 (wt%) | 3~8 | 6.06 | |
Others(max; wt%) | ≤8 | 4.89 | |
Ignition loss (800±10℃,2H; wt%) |
| ±0.5 | |
Physical Properties | Color | Grey-green | Grey-green |
Long-term using temperature | >1000℃ | >1000℃ | |
Fibre diameter numerical average(μm) | 6 | ≈6 | |
Fibre length weighted average(μm) | 260±100 | ≈260 | |
Shot content (>125μm) | ≤5 | 3 | |
Specific density(g/cm3) | 2.9 | 2.9 | |
Moisture Content(105 ℃±1℃,2H; wt%) | ≤1 | 0.2 | |
Surface Treatment Content(550±10℃,1H; wt%) | ≤6 | 3.92 | |
Safety | Asbesto Detection | Negative | Negative |
RoHS Directive(EU) | 10 substance of RoHS | Conform | |
Safety Date Sheet(SDS) | Pass | Pass |
Our rock wool mineral fibers are suitable for industrial structural reinforcements such as friction, sealing, road engineering, coatings. For many years our rock wool mineral fibres have been used in automotive friction materials (disc pads and linings) to improve comfort, safety and durability. Brake linings made from our fiber products have many notable features such as braking stably, high temperature properties, little abrasion, low (no)noise and long life.
● Asbestos Free
Our fine rock wool fibre is friendly and safe for human and environment without asbestos. It is non-radioactive and passed non asbestos testing.
● Low shot content
The nature of the production process means that for every fibre, there is a small non-fibrous particle called “shot”. Our fibre is made of pure rock , so it is stable because of stable chemical compositions of its raw materials. In our production process, we can reduce the shot content lower to 1% after testing. Low shot content can bring about low wear and noise on brake materials.
● Excellent dispersion and combination
We put a variety of surface treatments on the fibres, which makes it compatible to different binder systems. That can be an adhesion promotor, surfactant, or even a rubber layer. With the different surface modifiers, we can engineer the fibres for a range of binder systems and applications. It can be well combined with resin.
● Dust suppression
After surface treatment, fibres can inhibit fine dust in the mixture to reduce its irritation of skin and improve the working environment.
High temperature resistant, moisture and abrasion resistant.
Note: We can customize fiber according to clients special needs.
Rock wool has a high acidity coefficient, and its chemical stability, high temperature resistance, and corrosion resistance are superior to mineral wool. Slag wool should not be used in humid environments, especially in cold insulation projects. Therefore, only rock wool can be used in the thermal insulation system inside the building, and slag wool cannot be used. When the working temperature of the slag wool reaches 675℃, the density of the slag wool becomes smaller and the volume expands due to physical changes, so that the slag is pulverized and disintegrated, so the temperature of the slag wool should not exceed 675℃. Therefore, slag wool cannot be used in buildings. The temperature of rock wool can be as high as 800 ℃ or more.