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Rock Wool Board Manufacturers
Rock wool board manufacturers differ in their production standards, but they continuously adapt to market trends and customer demands by producing multi-functional, waterproof, and soundproof rock wool boards. These products are designed to meet various application needs while maintaining high performance. Here are some of the key standards followed: (1) The water absorption rate of rock wool boards is typically not less than 98%. In practice, many products achieve a rate over 99.8%. Most rock wool boards have a thermal load shrinkage temperature of at least 600°C, with a maximum working temperature usually reaching 700°C. (2) The moisture absorption rate of rock wool boards is generally no more than 5%. Although some products may not meet this requirement, manufacturers ensure compliance through strict quality control during production. (3) The fiber diameter plays a crucial role in determining the mechanical strength and insulation properties of rock wool. Typically, the fiber diameter ranges from 4 to 7 microns, and it can be adjusted based on the product’s mechanical requirements. (4) Rock wool has excellent sound-absorbing properties, making it suitable for both sound-absorbing and sound-insulating composite materials. Through these standards, manufacturers ensure that rock wool boards meet high-quality and functional expectations. Understanding these specifications helps in developing better water-repellent and durable rock wool boards. Rock Wool Board Manufacturers
Insulation rock wool boards, including wall insulation and external wall insulation boards, are advanced materials used for thermal insulation, fire resistance, and sound absorption. In addition to standard rock wool properties, they offer additional benefits such as water resistance, heat preservation, and cold insulation. They also exhibit good chemical stability and remain intact even under long-term exposure to humid conditions. Key technical parameters include: - Thermal conductivity: 0.026–0.035 W/(m·K) - Normal temperature slag content (particle size): ≤0.25, 10 or less - Non-combustibility: Class A - Fiber diameter: 4–7 microns - Operating temperature: -268°C to 700°C - Acidic coefficient >1.5 (SiO₂ + Al₂O₃ + MgO) - Moisture absorption rate: <5% - Density tolerance: ±10% - Thickness: 30–100 mm The "rock wool board" primarily uses hydrophobic rock wool produced via the pendulum method as an insulating layer. It is fixed using bonding and nailing techniques, combined with plastering and reinforcing glass fiber mesh. This creates a non-combustible energy-saving insulation system, often finished with decorative mortar or coatings. The rock wool board external wall insulation system has been certified by European thermal insulation leader Baumit (Tammit), achieving the European Technical Approval (ETA). It is ideal for new construction, renovation, and public buildings, offering low thermal conductivity, good air permeability, and advanced fire protection capabilities. It can be applied in various insulation systems, including external walls, non-clear curtain walls, and EPS external insulation systems.
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