Fire-retardant insulation blanket

fireprooffor mufflersfor furnaces

Product overview
The stitch-bonded silica needle mat is an inorganic needle-punched insulation mat composed of 95–99% high-purity amorphous silica fibers and reinforced with aramid and silica sewing threads. Stitch-bonded construction ties the fiber web through its full thickness to prevent delamination and maintain edge integrity under mechanical stress, vibration and high-velocity gas flow.

Thermal performance and stability
Designed for continuous use up to 1100°C (2012°F). The mat shows low thermal conductivity across a wide temperature range and limited linear shrinkage under prolonged thermal cycling, supporting long-term thermal insulation in high-temperature systems.

Safety and composition
Material is inorganic and non-combustible. It is asbestos-free, halogen-free and VOC-free. High electrical resistivity enables combined thermal and electrical insulation applications where required by specification.

Key features

• Stitch-bonded reinforcement prevents delamination and edge deterioration
• Reliable continuous service to 1100°C with limited thermal shrinkage
• Low thermal conductivity for effective heat conservation
• High electrical resistivity for combined thermal/electrical insulation
• Non-combustible; free of asbestos, halogens and VOCs
• Good machinability while retaining structural integrity
• Provides additional sound absorption when used in multi-layer assemblies

Fabrication and handling
The mat can be cut, die-cut, pressed or water-jet machined. Stitch reinforcement reduces fraying and helps maintain edge integrity during handling and processing. Off-cuts are inert and may be disposed of as non-hazardous mineral waste in accordance with local regulations.

Applications

• Construction & HVAC: fire doors, fire-rated ducts, wall cavities, chimneys, stoves, heating appliances
• Industrial thermal systems: kilns, furnaces, metallurgical equipment, insulation blankets, expansion joints, heat-intensive production lines
• Automotive & transportation: engine compartments, bulkheads, mufflers, catalytic systems, combined thermal/acoustic shields
• Electrical & lighting: enclosures requiring thermal and electrical isolation, floodlight housings, equipment exposed to radiant heat
• Protective equipment: fire blankets, welding protection, thermal shields, high-temperature protective apparel
• General fabrication: thermal screens, baffles, customized insulation components for high-heat environments

Technical specifications

• Composition: 95–99% high-purity amorphous silica fibers; reinforced with aramid and silica sewing threads
• Maximum continuous service temperature: 1100°C (2012°F)
• Linear shrinkage: approx. 7–8% under long-term thermal cycling
• Thermal conductivity: 0.04 W/m·K at 100°C; 0.16 W/m·K at 600°C; 0.34 W/m·K at 1000°C
• Electrical resistivity: on the order of 10^17–10^18 Ω·cm
• Safety: inorganic, non-combustible, asbestos-free, halogen-free, VOC-free
• Mechanical properties: stitch-bonded for improved tensile and tear resistance; enhanced resistance to vibration and high-velocity gas flow
• Fabrication methods: cutting, die-cutting, pressing, water-jet machining
• MOQ (order): 1
• Waste disposal: off-cuts inert; may be disposed as non-hazardous mineral waste