Pengzhou Shiyida Building Materials Co., Ltd.
| Payment Terms | spot goods and spot payment |
| Supply Ability | 2000 tons/month |
| Delivery Time | 2-7 days |
| Packaging Details | wrapped with a stretched polyethylene film directly on the outside |
| Density | 40 - 200 kg/m³ |
| Color | yellowish-brown |
| Stock Size | 1200×600（mm） |
| Thickness | 30mm-150mm |
| Electrical Insulation | Good |
| Noise Reduction | Good |
| fireproofing | Good |
| Hydrophobic Property | Good |
| Temperature Resistance | -268℃ ~ 650℃ |
| Surface Finish | Rough |
| Brand Name | SEASTAR |
| Model Number | Customizable according to requirements |
| Certification | CNASL6673 |
| Place of Origin | Chengdu, Sichuan, China |
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Product Specification
| Payment Terms | spot goods and spot payment | Supply Ability | 2000 tons/month |
| Delivery Time | 2-7 days | Packaging Details | wrapped with a stretched polyethylene film directly on the outside |
| Density | 40 - 200 kg/m³ | Color | yellowish-brown |
| Stock Size | 1200×600（mm） | Thickness | 30mm-150mm |
| Electrical Insulation | Good | Noise Reduction | Good |
| fireproofing | Good | Hydrophobic Property | Good |
| Temperature Resistance | -268℃ ~ 650℃ | Surface Finish | Rough |
| Brand Name | SEASTAR | Model Number | Customizable according to requirements |
| Certification | CNASL6673 | Place of Origin | Chengdu, Sichuan, China |
| High Light | rock wool insulation board 1200x600mm ，high density rock wool panel ，soundproof rock wool insulation | ||
Rock Wool Boards With Sound Absorption Creating Quiet Indoor Environments
Beyond excellent thermal insulation, fire resistance and durability, rock wool boards are widely used for acoustic noise reduction, thanks to their outstanding noise absorption. This ability comes from their unique physical structure and acoustic mechanism, which effectively weakens sound wave propagation and improves environmental sound quality.
Performance
After high-temperature melting and fiberization, rock wool boards form three-dimensional porous structures (porosity over 90%, mostly micron-level pores) via random fiber interweaving. When sound waves hit, three key processes occur: sound waves reflect, refract and rub against fibers, turning sound energy into heat; air columns in pores vibrate, consuming energy via air molecule viscosity; low-frequency waves trigger fiber resonance, absorbing low-frequency noise. This synergy gives them a 0.7-0.9 sound absorption coefficient for medium-high frequency noise (1000-4000Hz, per GB/T 20247-2006) and some low-frequency absorption, with stable, wide-ranging performance.
Their noise absorption can be optimized by adjusting density and thickness: low-density (40-80kg/m³) and thick (50-150mm) boards suit indoor acoustic decoration for medium-high frequency noise; high-density (100-200kg/m³) ones work for industrial equipment or building insulation, blocking low-frequency vibration. They also come in shapes like flat, curved or wedge plates for complex installations.
Rock wool boards act as core filling in sound insulation systems, combining with gypsum or metal plates for "absorption-insulation" integration. Filling them in double-layer walls or ceilings boosts sound insulation by 10-15dB(A), blocking neighborhood or traffic noise. Unlike moisture/aging-prone organic materials (e.g., sponges), their inorganic composition ensures long-term stability: sound absorption stays nearly unchanged at ≤80% humidity, recovers fully after drying, and lasts over 25 years without replacement.
Application
In applications, they fill residential partition walls, ceilings and floors to absorb domestic noise, meeting GB 50118 standards (e.g., 50mm, 80kg/m³ boards with double gypsum boards reach ≥45dB(A)). In public buildings, they become ceiling/wall panels to reduce reverberation (0.8-1.2s for conference rooms) and improve sound quality. For industry, they make sound insulation covers for fans or pumps (e.g., 100mm, 120kg/m³ boards cut noise from 95dB(A) to <70dB(A), complying with GB 12348-2022) and line workshop walls/roofs to protect workers’ hearing.
In traffic, they are core materials in highway sound barriers, cutting residential noise by 15-25dB(A). In subways/tunnels, fire-resistant panels absorb train noise while ensuring safety. They also insulate data center or substation control rooms (saving AC energy) and fill ship/railway carriage interlayers to enhance comfort and meet fire standards.
Comparison of Several Construction Marerials
| Comparison Items | Rock Wool Board | Polystyrene Board (EPS/XPS) | Polyurethane Board (PU) | Glass Wool Board | Aerated Concrete Block |
| Combustion Performance | Class A non-combustible (highest grade) | Class B1-B2 (flame-retardant-combustible) | Class B1 (flame-retardant, toxic fumes released at high temperatures) | Class A non-combustible | Class A non-combustible |
| Thermal Conductivity (W/(m·K)) | 0.036-0.048 | 0.030-0.040 (EPS); 0.028-0.032 (XPS) | 0.022-0.028 | 0.035-0.045 | 0.16-0.28 |
| Insulation Performance | Good | Excellent (XPS better than EPS) | Superior (best insulation effect) | Good | Average |
| Sound Insulation Performance | Excellent (fiber structure blocks air and solid sound transmission) | Average (low density, weak in blocking low-frequency noise) | Good (closed-cell structure, slightly better than polystyrene) | Good (fiber structure, mainly sound absorption) | Good (porous structure, moderate sound insulation) |
| Mechanical Strength | Compressive strength ≥40kPa, good toughness | EPS compressive strength ≥100kPa; XPS ≥200kPa | Compressive strength ≥200kPa, high hardness | Low compressive strength (≤30kPa), easy to break | Compressive strength ≥3.5MPa, high strength |
| Temperature Resistance Range | -268℃ to 650℃ (high-temperature resistant) | -50℃ to 70℃ (easy to deform at high temperatures) | -50℃ to 120℃ (easy to age beyond this range) | -120℃ to 400℃ | -50℃ to 600℃ (high-temperature resistant) |
| Weather Resistance | Moisture-resistant, anti-aging, adaptable to multiple climates | EPS absorbs water easily; XPS shrinks at high temperatures | Vulnerable to UV rays (needs protective layer), average water resistance | Poor water resistance (insulation drops when wet) | Moisture-resistant, good frost resistance |
| Environmental Friendliness | Made from natural rocks, formaldehyde-free, recyclable | Organic material, some contain flame retardants, hard to degrade | Contains isocyanates, emission control required during production | Glass fibers may irritate skin, average recyclability | Inorganic material, non-toxic, recyclable |
| Key Advantages | 1. Top-level fire resistance, high safety 2. Integrates insulation, soundproofing, and weather resistance 3. Adapts to harsh environments (high temperature, humidity, etc.) | 1. High insulation efficiency, low cost 2. Lightweight for construction, suitable for low-risk scenarios | 1. Optimal insulation performance, significant energy-saving effect 2. High strength, good integrity | 1. Excellent sound absorption, suitable for acoustic scenarios 2. Low cost | 1. Integrates load-bearing and insulation 2. Durable, same lifespan as buildings |
| Typical Applications | External wall insulation, fire barriers, industrial pipeline insulation | Internal building insulation, low-temperature storage, packaging cushioning | High-end building insulation, cold storage insulation, pipeline insulation | Concert halls, machine room soundproofing, ceiling filling | Wall masonry, self-insulating buildings |
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2011
Total Annual:
5000000-8000000
Employee Number:
80~120
Ecer Certification：
Verified Supplier
Pengzhou Shiyida Building Materials Co., Ltd. was established in 2011 and is located in Chengdu, a tourist city in China. It is one of the domestic manufacturers engaged in new-type refractory, thermal insulation and sound insulation materials. The factory is located in Pengzhou, with ... Pengzhou Shiyida Building Materials Co., Ltd. was established in 2011 and is located in Chengdu, a tourist city in China. It is one of the domestic manufacturers engaged in new-type refractory, thermal insulation and sound insulation materials. The factory is located in Pengzhou, with ...
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