Aluminum Silicate Fiber Blanket is wrapped in the outer surface of the building smoke prevention and exhaust metal steel pipe to achieve the rated fire resistance limit.
Aluminum Silicate Fiber Blanket is also suitable for fire protection of ventilation, oil fume, high temperature exhaust and chemical exhaust pipes.
Product Introduction
Shenzhou Aluminum Silicate Fiber Blanket is a lightweight, flexible and foil-faced fireproof wrap developed for the external protection of galvanized steel smoke-control and exhaust ducts. Its aluminum silicate fiber core helps reduce heat transfer, while the laminated aluminum foil facing improves handling strength and limits water vapor penetration.
The product is suitable for ventilation ducts, oil-fume exhaust ducts, high-temperature exhaust pipes and chemical exhaust systems in commercial, public and industrial buildings. In the specified duct assembly, 30 mm, 40 mm and 50 mm insulation thicknesses provide fire resistance periods of 60, 90 and 120 minutes respectively.
Aluminum Silicate Fiber Blanket provides a practical solution where lightweight construction, A1 non-combustibility and defined fire-rated system performance are required.
The aluminum silicate fiber core achieves an A1 combustion classification, making it suitable for fire and smoke-control duct applications where non-combustible insulation materials are specified.
Three insulation thicknesses are available for the specified duct-wrap assembly:
This allows project engineers and contractors to select the insulation thickness according to the required fire-resistance period.
The laminated aluminum foil facing enhances operational strength and helps protect the fiber core against water vapor penetration during storage, handling and installation.
With a core density of 96–128 kg/m³, the blanket is flexible enough to wrap around rectangular or irregular duct sections while adding limited weight to the duct-supporting structure.
The Aluminum Silicate Fiber Blanket has a thermal conductivity of 0.141 W/(m·K) at an average temperature of 500°C, helping slow heat transfer through the duct enclosure.
A permanent linear change of 1.7% after exposure to 1000°C for 24 hours supports dimensional stability under elevated-temperature conditions.
The flexible blanket can be wrapped around the external surface of galvanized steel ducts and secured with welding pins according to the approved fireproofing system drawing.
Shenzhou is a thermal insulation and acoustic materials manufacturer integrating product development, manufacturing and application support. Its insulation product range includes ceramic wool, rock wool, glass wool and other materials for commercial and industrial projects.
For project procurement, Shenzhou can review the required fire rating, application, thickness and quantity before quotation. For ordinary furnace, kiln or high-temperature equipment insulation, please view our Ceramic Wool Blankets. For the complete ceramic fiber product range, visit Ceramic Wool Insulation.
Product Features
01
Light weight, flexible, No toxic smoke release
02
The laminated aluminum foil veneer is fully packaged for both operational strength and protection of water vap orpenetration
03
Simple and fastst and ardized installation
Structural Drawing
1~2 hours refractory cladding type structure
Technical Data
|
ProductName |
Test Item |
Technical Index |
Product Standard |
|
|
Core Material |
Density(kg/m) |
96~128 |
GB/T16400-2015 |
|
|
Weight(kg/m) |
Thickness 30mm |
2.88~3.84 |
||
|
Thickness 40mm |
3.84~5.12 |
|||
|
Thickness 50mm |
4.8~6.4 |
|||
|
Slag content(%) |
Particle size >0.212mm |
≤20 |
||
|
Thermal conductivity(W/m·K) |
Average temperature 500℃ |
0.141 |
||
|
Heating permanent line change(%) |
1000℃×24h |
1.7 |
||
|
Tensile strength(MPa) |
≥0.04 |
|||
|
Combustion |
A1 |
|||
|
Veneer |
Gram weight(g/m²) |
100 |
JC/T2028-2018 |
|
|
Water vapor permeability(ng/N·s) |
1.15 |
|||
|
Bursting strength(kg/cm²) |
10 |
|||
|
Tensile strength(kN/m) |
10 |
|||
|
Exhaust System |
Fire resistance of smoke(A1 class) |
Thickness 30mm |
60 mins |
GB/T17428-2008 |
|
Thickness 40mm |
90 mins |
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|
Thickness 50mm |
120 mins |
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Structure: Galvanized steel plate + aluminum silicate flexible fireproof wrap. Aluminum silicate fiber cotton is reinforced with sodium silicate solution, and aluminum silicate fiber cotton is placed between flanges. Installation: Fix the aluminum silicate flexible fireproof wrap to the galvanized steel plate with welding nails.
Application
The fireproof wrap can be installed around metal smoke-exhaust ducts in civil, public and industrial buildings to delay heat transfer and help maintain the required fire compartment performance.
The lightweight foil-faced blanket is suitable for ventilation systems that require external non-combustible insulation and additional fire protection.
It can be used as part of the fire-protection construction surrounding metal oil-fume exhaust ducts in commercial kitchens and food-service buildings.
The Aluminum Silicate Fiber Blanket helps insulate high-temperature exhaust pipes in industrial facilities where flexibility and low added structural weight are important.
The product can be used for the external fire protection of chemical exhaust ducts, subject to confirmation of the operating environment and project requirements.
Typical projects include shopping centers, transport facilities, hospitals, commercial complexes and other public buildings with smoke-control and mechanical exhaust systems.
Aluminum silicate fiber blanket and ceramic fiber blanket often refer to the same alumina-silica fiber material. However, the final product structure can be different. This page covers a foil-faced blanket developed for fire-rated duct wrapping, while ordinary ceramic fiber blankets are mainly used for furnaces, kilns, boilers and high-temperature equipment insulation.
The specified system uses a 50 mm Aluminum Silicate Fiber Blanket for a 120-minute fire-resistance period. The duct construction, flanges, fasteners and joint treatment must also follow the corresponding system design.
A 40 mm blanket is used in the specified assembly for a 90-minute fire-resistance period under GB/T 17428-2008.
Yes. The technical data lists the core material as A1 reaction-to-fire class.
The aluminum foil facing improves surface strength and handling performance and helps limit water vapor penetration. It also provides a cleaner external surface for duct-wrap installation.
This product page is specifically intended for foil-faced fireproof duct wrap applications. Buyers requiring ordinary furnace, kiln or boiler insulation should select a standard Ceramic Fiber Insulation Blanket.
Please provide the required fire rating, blanket thickness, duct dimensions, total project area, quantity, applicable standard, documentation requirements and delivery destination.
Smoke Control and Exhaust System for Civil Buildings
Industrial Building Smoke Control System
Smoke Control System for Public Buildings
Chemical Exhaust Duct Protection
High Temperature Exhaust Pipe Protection
Fire Protection and Smoke Exhaust System
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