Rock wool board
An inorganic thermal insulation board manufactured from natural basalt and dolomite, produced through high-temperature melting at 1,450–1,500°C, fiberization, addition of a binder, shaping, and curing.
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Rock wool board
An inorganic thermal insulation board manufactured from natural basalt and dolomite, produced through high‑temperature melting at 1,450–1,500°C, fiberization, binder addition, shaping, and curing. It features a fibrous interwoven structure and combines non‑combustibility, thermal insulation, sound insulation, and sound absorption properties, making it the preferred insulation material for high‑temperature applications and projects with stringent fire‑protection requirements.
Performance Metrics
1. Fire Performance: Class A1 (Non-combustible)
2. Thermal conductivity: ≤0.040 W/(m·K) (at 25°C)
3. Bulk density: 100–180 kg/m³
4. Water absorption (by volume): ≤5% (after 24 hours of immersion)
5. Compressive strength: ≥0.04 MPa (at 10% deformation)
6. Tensile strength: ≥0.03 MPa
7. Maximum operating temperature: 600℃
8. Airborne sound insulation rating: ≥35 dB (for a thickness of 100 mm)
Scope of Application
It is used as an insulation layer in residential buildings, public buildings, commercial buildings, and for energy‑saving retrofits of existing structures.
Product Advantages
1. Absolute fire resistance: Class A1 non-combustible; it does not burn, produce smoke, or emit toxic gases at high temperatures, offering the highest level of fire safety.
2. High-Temperature Resistance: Maximum service temperature of 600°C, suitable for thermal insulation in high-temperature environments.
3. Excellent sound insulation: The fibrous interwoven structure effectively absorbs sound waves, achieving an airborne sound insulation rating of ≥35 dB.
4. Chemical stability: resistant to acid and alkali corrosion, non‑moldy and insect‑proof, suitable for humid and corrosive environments.
5. Environmentally friendly and renewable: Made from natural minerals, it is recyclable, and its production process generates no pollutant emissions.
Instructions for Use
1. Substrate Preparation: The wall surface must be smooth and dry, with loose dust and oil stains removed, and any hollow areas repaired.
2. Surface Treatment: Apply a specialized interface agent to the surface of the rock wool board (to enhance water resistance and adhesion), and allow it to dry before use.
3. Bonding Installation: Use the frame‑spot method, applying a dedicated bonding mortar with a thickness of 3–5 mm and achieving a bond coverage of 60%.
4. Support bracket installation: During construction, stainless steel support brackets shall be installed every three floors.
5. Anchoring and Fixing: Install galvanized anchor bolts 24 hours after application; the anchor bolt length shall be ≥ the rock wool board thickness + 50 mm, with a density of 8–10 anchors per square meter.
6. Protective Layer: Apply a 3–5 mm thick finishing mortar (with crack‑resistant fibers), embedding a double layer of alkali‑resistant fiberglass mesh (with the bottom layer laid horizontally and the top layer laid vertically).
7. Waterproofing: Apply an additional waterproofing layer at wall corners, window sills, and other areas to prevent rainwater infiltration.
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