Beyond Heat Resistance: What Are the Surprising Cold-Temperature Uses of Silicone Coated Fabric?

January 21, 2026
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Silicone Coated Fiberglass Fabric: A Versatile Industrial Solution

Silicone coated fiberglass fabric is a high-performance composite material formed by applying a layer of silicone to one or both sides of a woven fiberglass substrate. This combination yields a remarkably flexible yet durable fabric endowed with a suite of exceptional properties. The silicone coating grants outstanding resistance to high temperatures, water, oils, chemicals, and UV radiation. Furthermore, the material exhibits low smoke emission, inherent flame retardancy, and excellent electrical insulation capabilities.

As a leading manufacturer of high-temperature industrial textiles, Suntex produces top-tier silicone coated fiberglass fabric. This material leverages the extreme heat resistance of its components: the underlying fiberglass fabric can withstand temperatures up to 1000°F (550°C), while the silicone coating remains stable up to 550°F (287°C). This robust thermal profile, combined with its versatility, makes it an indispensable material across a broad spectrum of industries, including Petroleum, Chemical, Construction, Marine, Clean Energy, and Ventilation.

Key Industrial Applications
The unique characteristics of silicone coated fiberglass fabric are harnessed in numerous critical applications:

1. Removable Thermal Insulation Covers/Jackets/Blankets
This fabric is fundamental in crafting removable insulation for industrial equipment. It serves as a protective outer layer (offering waterproof, oil-resistant, and abrasion-resistant properties), an efficient inner insulation layer, and within fastening structures like straps. It is widely used for insulating valves, pipes, flanges, turbines, boilers, heat exchangers, and equipment in chemical processing, food production, marine, and environmental sectors.

2. Welding Blankets/Rolls
Its excellent resistance to sparks, heat, and abrasion makes it an ideal choice for light-duty welding blankets. The fabric effectively shields against welding splatter and radiant heat, while its waterproof and oil-resistant nature ensures reliable performance in demanding workshop environments.

3. Fabric Expansion Joints
In ducting systems, this material is used in the flexible element, outer cover, and insulation layers of fabric expansion joints. It effectively absorbs thermal expansion, accommodates vibration, and compensates for misalignment, all while providing durability against high temperatures and corrosive chemicals.

4. Fire & Safety Systems
Reinforced with steel wire, silicone coated fiberglass fabric forms the core of fire curtains, barriers, and screens. Its high-temperature and flame-retardant properties effectively block the spread of flames and smoke, providing crucial compartmentalization during a fire. Similarly, it is the primary material for car fire blankets, enabling quick deployment to smother vehicle fires.

5. Flexible Duct Connectors
Used in the main body of flexible connectors, this fabric accommodates movement, absorbs vibration and noise, and reduces energy loss in ductwork. Its sealing capability and stability in high-temperature environments ensure reliable performance in HVAC and industrial ventilation systems.

Dispelling a Common Myth
A prevalent misconception is that silicone coated fiberglass fabric is only suitable for high-temperature applications. This is false. While excelling in heat-intensive settings, this material typically retains its flexibility and functional integrity at temperatures as low as -70°C, making it a viable solution for extreme cold environments as well.

Suntex's Manufacturing Expertise
Suntex specializes in providing a diverse portfolio of silicone rubber coated fiberglass fabrics tailored to meet specific industrial requirements. Our capabilities include:

Broad Specification Range: Fabric weights from 130gsm to 5000gsm and thicknesses from 0.1mm to 3.5mm.

Versatile Coating Techniques: Utilization of knife coating, dipping, and calendaring methods to achieve desired performance characteristics and finish.

In summary, silicone coated fiberglass fabric is a multifaceted engineering material that enhances safety, efficiency, and durability. From containing extreme heat and flames to ensuring operational flexibility in ducting and insulation systems, its role is critical in advancing performance and protection across modern industry.