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

Product Introduction

This basalt coating fabric is manufactured by applying a high-temperature adhesive coating formulation to the surface of basalt base cloth. The coating improves the cohesion and breaking strength of basalt continuous fibers. The product exhibits high strength, electrical insulation properties, corrosion resistance, and high-temperature resistance. The fabric is widely used in fiber-reinforced composites, friction materials, shipbuilding materials, thermal insulation materials, the automotive industry, high-temperature filtration fabrics, and protective applications.

Core Advantages

Improved Fiber Cohesion

High-temperature adhesive coating enhances bonding between basalt fibers, increasing structural integrity and reducing fiber shedding.

Increased Breaking Strength

Coating treatment improves tensile strength and breaking resistance compared to uncoated basalt fabric.

High-Temperature Resistance

Continuous operating temperature up to 650°C (substrate), with coating providing additional surface protection.

Electrical Insulation Properties

Provides dielectric insulation for electrical and electronic applications in high-temperature environments.

Corrosion Resistance

Resistant to most acids, alkalis, and chemicals. Coating provides additional chemical barrier protection.

Multi-Industry Versatility

Applicable to composites, friction materials, shipbuilding, insulation, automotive, filtration, and protective fields.

Product Features

Base material Basalt continuous fiber fabric. Continuous temperature rating: 650°C. Intermittent peak: 850°C.

Coating type High-temperature adhesive coating formulated for basalt fiber. Improves fiber cohesion, abrasion resistance, and surface smoothness.

Coating temperature rating 200-300°C depending on formulation. Coating may degrade at higher temperatures but substrate maintains integrity.

Available thicknesses 0.3mm, 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 improvement Coating increases breaking strength by 15-25% compared to uncoated basalt fabric.

Technical Specifications

Parameter	Specification
Substrate material	Basalt continuous fiber fabric
Substrate continuous temperature	650°C
Substrate intermittent peak	850°C (short duration)
Coating temperature rating	200-300°C (continuous)
Available thicknesses	0.3mm, 0.5mm, 0.8mm, 1.0mm, 1.2mm, 1.5mm, 2.0mm
Available widths	800mm, 1000mm, 1200mm
Tensile strength (coated, warp)	>1200 N per 50mm width
Breaking strength improvement	+15-25% vs uncoated fabric
Dielectric strength	8-10 kV/mm
Flame resistance	Non-combustible. Self-extinguishing.
Color	Dark gray to brown (natural basalt), coating may add color depending on formulation

Application Scenarios

Fiber-reinforced composites manufacturing

Friction materials for brake and clutch systems

Shipbuilding and marine insulation materials

Thermal insulation materials for industrial equipment

Automotive industry heat shields

High-temperature filtration fabrics

Protective clothing and equipment

Electrical insulation applications

This basalt coating fabric is suitable for fiber-reinforced composites manufacturing, where the coated fabric serves as reinforcement for polymer, ceramic, or metal matrix composites. Friction materials for brake pads and clutch facings use the fabric as a reinforcement layer that withstands high temperatures. Shipbuilding and marine insulation applications include fire barriers, engine room insulation, and bulkhead protection. Thermal insulation materials for industrial equipment incorporate the coated fabric for heat containment and personnel protection. The automotive industry uses the fabric for heat shields, under-hood insulation, and exhaust system components. High-temperature filtration fabrics fabricated from the material capture particulates in gas streams up to 650°C. Protective clothing and equipment for welders and foundry workers utilize the fabric's heat resistance and durability. Electrical insulation applications include wrapping high-temperature cables and protecting electronic components in harsh environments.

Common Questions and Solutions

What is the purpose of the high-temperature adhesive coating?

The coating bonds individual basalt fibers together, improving fiber cohesion and preventing fraying. It also increases breaking strength by 15-25% compared to uncoated fabric, reduces dust generation during handling, and provides a smoother surface for lamination or secondary processing. The coating does not significantly affect the fabric's high-temperature resistance.

Can the coated fabric be used in composite manufacturing?

Yes. The coated fabric is suitable for reinforcing polymer matrix composites (epoxy, phenolic, polyester, etc.), ceramic matrix composites, and metal matrix composites. The coating improves fiber wet-out with most resin systems. For high-temperature composites requiring processing above 300°C, the coating may decompose; uncoated fabric is recommended for such applications.

How does the coated fabric perform as a friction material?

The coating improves fiber cohesion, reducing fiber pull-out under friction. The fabric maintains integrity at temperatures up to 650°C, suitable for brake and clutch applications. The coated fabric can be impregnated with phenolic resins or other friction modifiers to produce friction pads. The fabric provides consistent friction coefficient and wear resistance.

Is the fabric suitable for high-temperature filtration applications?

Yes, for applications up to 650°C. The coating reduces fiber shedding, which is beneficial for clean filtration applications. However, the coating may gradually degrade over time in high-temperature gas streams. For long-term filtration at temperatures above 300°C, uncoated basalt fabric or high silica fabric may be more suitable.

How should the coated fabric be stored?

Store the coated fabric in a dry, clean environment at temperatures between 10-30°C. Avoid exposure to direct UV light for extended periods. The coating may become brittle if stored at low temperatures or in dry conditions. Shelf life is 24 months from date of manufacture when stored properly.

Can the fabric be washed or cleaned?

The coated fabric can be wiped clean with a dry cloth or vacuumed. Do not wash with water or solvents as this may damage the coating. For oil-contaminated fabric, use a mild solvent on a cloth to spot clean; do not immerse the fabric. Replace the fabric if the coating is significantly damaged.

Installation and Handling Considerations

Wear gloves when handling coated basalt fabric. The coating reduces fiber irritation but the edges may still be sharp after cutting. Use an N95 respirator when cutting large quantities.

Cut the fabric using sharp scissors, a rotary cutter, or a utility knife. For production quantities, use a die cutter or CNC cutting machine. The coating may cause blades to dull faster than uncoated fabric.

When using as composite reinforcement, ensure the coating is compatible with the matrix resin system. Test compatibility before full-scale production. For epoxy and phenolic resins, the coating is typically compatible.

For friction material applications, impregnate the fabric with phenolic resin or other friction modifiers using dip-coating or roll-coating methods. Cure according to the resin manufacturer's specifications.

For thermal insulation applications, install the fabric with the coated side facing outward for easier cleaning. Secure using stainless steel tie wraps or high-temperature adhesive. Ensure the fabric does not contact moving parts.

Inspect the fabric periodically for coating damage, fraying, or thermal degradation. Replace the fabric when the coating is visibly damaged or when the basalt substrate is exposed. For friction material applications, replace components when the fabric shows signs of wear beyond the manufacturer's specifications.