Wholesale High Temperature High Silica Coating Fabric Manufacturers, OEM/ODM Factory - Ningguo Zhongdian Insulation Material Co., Ltd

High-silicone-oxygen fibre-coated cloth, which consists of a high-silicone-oxygen fibre base cloth and a high-temperature adhesive coating, in which the high-temperature adhesive is coated on one or both sides of the high-silicone-oxygen fibre base cloth, or it can be coated on the high-silicone-oxygen fibre yarn, and then woven into cloth with the yarn; the product of the present utility model is impermeable to air, wrinkle, fatigue and abrasion resistant, has high elastic restitution and can be directly used in the fire-fighting, heat-insulating, flame-retarding, radiation-retaining, smoke-blocking, security protection and other fields.

Product Introduction

This high silica coating fabric consists of a high silica fiber substrate coated with a specialized coating material to enhance performance properties. The product provides high-temperature resistance, corrosion resistance, high strength, and good toughness. The fabric is easy to process and can be fabricated into various complex shapes and sizes. It exhibits good chemical stability and is inert to most chemicals, providing corrosion resistance. The fabric can be manufactured into fire curtains, insulation layers and other building materials, engine insulation pads, exhaust pipe protective covers, and other components.

Core Advantages

High-Temperature Resistance

Continuous operating temperature up to 1000°C (substrate). Suitable for extreme high-temperature environments.

High Strength with Good Toughness

High silica fiber substrate provides tensile strength while maintaining flexibility for fabrication into complex shapes.

Chemical Stability and Corrosion Resistance

Inert to most chemicals. Maintains properties in acidic, alkaline, and organic solvent environments.

Easy Processability

Can be cut, sewn, laminated, and fabricated into various shapes and sizes using standard textile equipment.

Enhanced Surface Properties

Coating improves abrasion resistance, reduces fiber shedding, and provides additional chemical protection.

Versatile Multi-Industry Application

Suitable for building materials, engine components, exhaust systems, and industrial insulation applications.

Product Features

Substrate material High silica fiber fabric with SiO₂ content ≥96%. Continuous temperature rating: 1000°C. Short-term peak: 1650°C.

Coating options Silicone coating (up to 260°C), vermiculite coating (up to 800°C), aluminum coating (radiant heat reflection), or other customized coatings.

Available thicknesses 0.5mm, 0.8mm, 1.0mm, 1.2mm, 1.5mm, 2.0mm (total thickness including coating).

Available widths 800mm, 1000mm, 1200mm. Custom widths available.

Tensile strength >1000 N per 50mm width (substrate). Coating adds additional surface durability.

Chemical resistance Resistant to most acids (except HF), alkalis, and organic solvents. Coating provides additional protection.

Technical Specifications

Parameter	Specification
Substrate material	High silica fiber (SiO₂ ≥96%)
Substrate continuous temperature	1000°C
Substrate short-term peak	1650°C (less than 30 seconds)
Coating temperature rating	Varies by coating: Silicone (260°C), Vermiculite (800°C)
Available thicknesses	0.5mm, 0.8mm, 1.0mm, 1.2mm, 1.5mm, 2.0mm
Available widths	800mm, 1000mm, 1200mm
Tensile strength (warp)	>1000 N per 50mm width
Tensile strength (weft)	>800 N per 50mm width
Thermal conductivity at 500°C	0.035-0.045 W/m·K
Flame resistance	Non-combustible. UL VW-1, self-extinguishing.
Color	Dependent on coating (red silicone, off-white vermiculite, silver aluminum)

Application Scenarios

Fire curtains and fireproof building materials

Insulation layers for building envelopes

Engine insulation pads

Exhaust pipe protective covers

Industrial furnace insulation

Expansion joint covers

Welding protection blankets

High-temperature gaskets and seals

This high silica coating fabric is suitable for fire curtains in commercial buildings and industrial facilities, providing fire barrier protection while allowing movement in fire-rated openings. Insulation layers for building envelopes use the fabric as a thermal barrier in high-temperature zones such as boiler rooms and furnace areas. Engine insulation pads for automotive, marine, and industrial engines protect surrounding components from radiant heat and reduce engine compartment temperatures. Exhaust pipe protective covers shield nearby wiring and hoses from exhaust heat, preventing thermal damage. Industrial furnace insulation includes removable covers for furnace doors and access panels. Expansion joint covers in industrial piping and building construction use the flexible fabric to accommodate movement while maintaining thermal protection. Welding protection blankets fabricated from the material shield workers and nearby equipment. High-temperature gaskets and seals are cut from the fabric for flanges and access doors in high-temperature equipment.

Common Questions and Solutions

What types of coatings are available and how do they differ?

Silicone coating provides water repellency, oil resistance, and flexibility with temperature rating up to 260°C. Vermiculite coating provides higher temperature resistance (up to 800°C) and improved abrasion resistance for industrial applications. Aluminum coating reflects radiant heat (90-95% reflectivity) and is suitable for applications where radiant heat is the primary concern. Each coating can be customized for specific performance requirements.

Can the fabric be sewn or fabricated using standard equipment?

Yes. The fabric can be cut using sharp scissors or a utility knife. Sew using high-temperature thread such as Nomex, fiberglass, or PTFE-coated thread. For high-temperature applications above 260°C, use stainless steel wire for seams. The fabric can also be laminated, die-cut, and fabricated with grommets.

Is the fabric suitable for outdoor use?

Yes, depending on the coating selection. Silicone-coated fabric provides excellent UV and weather resistance. Vermiculite-coated fabric may absorb moisture and is better suited for indoor applications. For outdoor fire curtains or building materials, silicone coating or aluminum coating is recommended.

Does the coating affect the fabric's flexibility?

Silicone coating maintains good flexibility at room temperature and low temperatures. Vermiculite coating may stiffen the fabric slightly but does not prevent fabrication or installation. Aluminum coating adds some stiffness but the fabric remains flexible enough for most applications. The high silica substrate itself is flexible; the coating selection affects final flexibility.

How should the fabric be cleaned and maintained?

For silicone-coated fabric, wipe with a damp cloth and mild detergent as needed. Vermiculite-coated fabric should not be washed as the coating may be damaged. For fire curtains and insulation applications, remove surface dust with a vacuum cleaner. Replace the fabric if the coating is damaged or the substrate is exposed.

What is the shelf life of the coated fabric?

When stored in a dry, clean environment away from direct UV exposure and extreme temperatures, the coated fabric has a shelf life of 5 years for silicone coating and 3 years for vermiculite coating. The high silica substrate does not degrade, but the coating may lose some properties over extended storage.

Installation and Handling Considerations

Store the fabric in a dry, clean area. Avoid folding the fabric in the same location repeatedly to prevent coating creasing. Roll the fabric for long-term storage.

When cutting the fabric, use sharp tools to minimize fraying. For coated fabrics, seal cut edges with high-temperature silicone sealant or edge binding tape to prevent coating delamination.

For fire curtain installations, ensure the fabric is securely attached to the support structure. Use stainless steel fasteners and mounting hardware. The fabric should be taut but not stretched excessively.

For engine insulation pads, use the fabric as a cover over insulation batting. Sew the edges closed with high-temperature thread. Install the pad using stainless steel tie wraps or mechanical fasteners.

For exhaust pipe protective covers, cut the fabric to size and wrap around the pipe with the coated side facing outward. Secure with stainless steel tie wraps or high-temperature tape. Ensure the cover does not contact moving parts.

Inspect fabricated products periodically for coating damage, fraying, or thermal degradation. Replace components when the coating is visibly damaged or when the high silica substrate is exposed. For safety-critical applications such as fire curtains, follow the manufacturer's recommended replacement schedule.