Painel de parede tipo sanduíche de lã de rocha resistente ao fogo
Glostar’s fire resistant rockwool sandwich wall panel is built for prefabricated steel buildings that demand real fire protection. A non-combustible, high-density rock wool core is bonded between color-coated steel sheets for Class A fire resistance, strong thermal insulation, and outstanding soundproofing — with a finish that rivals aluminum curtain walls at a fraction of the cost. Certified to CE, and SIRIM standards and shipped worldwide.
Descrição
The fire resistant rockwool painel de parede em estrutura sanduíche is manufactured from rock wool — mineral fibers produced by melting natural rock at high temperature and binding them with an appropriate adhesive. Widely used in factories, workshops, and warehouses, this panel is the standard choice wherever building codes or insurance requirements call for Class A, non-combustible wall construction, along with reliable thermal insulation and acoustic performance. Easy and fast to install, it is a cost-effective alternative to aluminum composite curtain walls while delivering equal or better fire safety.
Material do núcleo: Lã de rocha
Aplicação: Sistemas de paredes exteriores e interiores
Espessura do painel: 50 / 75 / 80 / 100 / 120 / 150 mm ou à medida
Superfície: Aço revestido a cor
Comprimento: Personalizado de acordo com os requisitos do projeto
Cor: Cores RAL disponíveis
Opções de revestimento: PE / SMP / HDP / PVDF
Ligação: Opções de encaixe macho e fêmea / fixação oculta
Especificações
| Tipo de painel | Concealed-fixed / Through-fixing rockwool sandwich panel |
| Comprimento | 3,5 m – 11,8 m (comprimentos personalizados disponíveis) |
| Largura | 1000 mm (efetivo) |
| Espessura | 50 / 60 / 75 / 80 / 100 / 125 / 150 / 200mm |
| Espessura do aço exterior | 0,5 mm – 0,8 mm |
| Espessura do aço interior | 0.5mm – 0.7mm |
| Revestimento | Poliéster (PE), HDP, PVDF |
| Galvanização | Zinco por imersão a quente, Al-Zn por imersão a quente, Zn-Al-Mg por imersão a quente |
| Perfil | Ondulação, onda plana, onda quadrada |
| Decorative Gap | 0 / 20mm |
| Cor | Personalizado (tabela de cores RAL disponível) |
| Classificação de resistência ao fogo | Classe A (núcleo incombustível) |
Desempenho em caso de incêndio e desempenho térmico
Resistência ao fogo
| Classificação de resistência ao fogo | Non-combustible material, A reaction to fire |
| Limite de resistência ao fogo (FRL) | 30 a 240 minutos, dependendo da estrutura e da espessura do painel. Painel de lã de rocha com 100 mm de espessura: 120 minutos. |
Isolamento térmico
| Espessura | Transferência de calor (valor U) | Resistência térmica (valor R) |
|---|---|---|
| 50 mm | 0,8 W/m²K | 1.25 |
| 100 mm | 0,4 W/m²K | 2.5 |
| 150 mm | 0,27 W/m²K | 3.7 |
Condutividade térmica (valor K): 0,04 W/(m·K).
Lã de rocha vs. lã de escória
Not all mineral wool is created equal. Conventional slag wool has a low acidity coefficient and
high dust content, making it corrosive to metal facings and prone to losing its insulating value
once it absorbs moisture — a common cause of cold bridging. Glostar’s new-model rock wool core
avoids these issues:
| Lã de rocha (núcleo Glostar) | Lã de escória (convencional) |
|---|---|
| Non-combustible, Class A fireproof performance | High dust content, low acidity coefficient — corrosive to metal |
| Hidrofóbico, elevada resistência ao envelhecimento | High hygroscopicity — absorbs moisture, prone to cold bridging |
| Strong sound absorption and noise reduction | Thermal performance declines sharply once wet |
| Biodegradável e amigo do ambiente | — |
| High acidity coefficient — minimal corrosion of steel facings | — |
The acidity coefficient — defined as (SiO₂+Al₂O₃)/(CaO+MgO) — is the key indicator of a mineral
a viscosidade da lã a altas temperaturas, a sua capacidade de formar fibras e a sua solubilidade. A lã de escória, normalmente,
measures around 1.1, while true rock wool measures around 1.8. The lower coefficient and higher
CaO/MgO content in slag wool is what makes it corrosive to metal facings, whereas Glostar’s rock
wool core is engineered to protect the steel sheets it’s bonded to.
Why Choose Glostar Rockwool Wall Panels
- Class A fire resistance: Non-combustible rock wool core with an FRL of up to 240 minutes, suitable for buildings with strict fire-safety requirements.
- Global certification: Certified by CE (EU) and SIRIM (Malaysia).
- High bonding strength: Imported high-efficiency, fireproof binder sprayed at up to 600g/m² achieves near 100% bonding rate.
- Superior bond test results: Bonding strength ≥0.15MPa and stripping property ≥97%, both well above China’s national standard minimums (≥0.06MPa / ≥85%).
- Enhanced rigidity: 90° rotated, vertically distributed, cross-butted rock wool core strips eliminate gaps and increase panel strength and tear resistance.
- Consistent flatness: Double crawler production keeps rolls in full plane contact with the steel sheets during curing, ensuring flat panels and a stable bond.
- Fully customizable: Choose thickness, steel gauge, coating, color, galvanizing type, and profile to match project specifications.
Aplicações
Glostar fire resistant rockwool sandwich wall panels are widely used in prefabricated steel factories and workshops, warehouses and logistics centers, buildings storing flammable or explosive materials, and any commercial or industrial structure where Class A fire safety, thermal insulation, and sound control are all required in a single wall system.
Perguntas Frequentes
What is the fire-resistant limit (FRL) of the panel?
Depending on panel structure and thickness, FRL ranges from 30 to 240 minutes. A 100mm full rock wool panel achieves an FRL of 120 minutes.
What certifications does the panel hold?
Glostar rockwool sandwich wall panels are certified by FM (USA), CE (EU), QAI (Canada), and SIRIM (Malaysia).
What’s the difference between rock wool and slag wool panels?
Rock wool has a higher acidity coefficient (around 1.8 vs. 1.1 for slag wool), giving it better hydrophobicity, less corrosive effect on steel facings, and more stable long-term thermal performance.
Que opções de espessura estão disponíveis?
As espessuras padrão variam entre 50 mm e 200 mm, permitindo que a resistência ao fogo e o desempenho térmico sejam adaptados aos requisitos do projeto.
Oferecem cores e comprimentos personalizados?
Sim. O comprimento dos painéis pode variar entre 3,5 m e 11,8 m, e as cores são personalizadas de acordo com as especificações RAL do seu projeto.
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