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Rock Wool Board Manufacturers
Rock wool board manufacturers vary in their production standards, but they all aim to meet the evolving needs of the market and customers. Many companies have developed multi-functional rock wool boards that offer waterproofing, soundproofing, and insulation properties. These products are designed with high performance and reliability in mind. Here are some key technical standards followed by leading manufacturers: (1) The water absorption rate of rock wool boards is typically no less than 98%, with actual values often exceeding 99.8%. Most rock wool boards can withstand temperatures up to 700°C, with a thermal load shrinkage temperature of at least 600°C. (2) The mass moisture absorption rate is generally not more than 5%. While many products struggle to meet this standard, reputable manufacturers ensure compliance through strict quality control during production. (3) The fiber diameter plays a crucial role in determining both the mechanical strength and thermal insulation performance of the board. Most rock wool boards have fibers ranging from 4 to 7 micrometers, which can be adjusted depending on the product's requirements. (4) Rock wool is known for its excellent sound-absorbing properties, making it ideal for use in sound-insulating and sound-absorbing composite materials. Understanding these standards helps us appreciate how rock wool board manufacturers set and maintain high-quality production criteria. Rock Wool Board Manufacturers
Insulation rock wool boards, including wall and external wall insulation systems, are advanced materials used for thermal, fire, and sound insulation. In addition to traditional rock wool properties, modern versions offer waterproofing, heat preservation, and cold insulation. They also exhibit good chemical stability and remain intact even in humid conditions over long periods. Key technical specifications include: - Thermal conductivity: 0.026–0.035 W/(m·K) - Normal temperature slag content (particle diameter): ≤0.25 mm - Non-flammability rating: Class A - Fiber diameter: 4–7 microns - Operating temperature range: -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, and reinforced with glass fiber mesh. This creates a non-combustible energy-saving insulation system that includes a decorative mortar finish or coating. This rock wool external wall insulation system has been certified by European thermal insulation brand Baumit (Tammit), obtaining the European Technical Approval (ETA). It is suitable for new construction, renovations, and public buildings, offering excellent thermal performance, breathability, and fire resistance. It can be applied to various types of insulation projects, including non-clear curtain walls and EPS external insulation systems.
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