Details
Vermiculite Coated Fiberglass Cloth is a specialized fire protection and high-temperature insulation material crafted from high-temperature texturized continuous fiberglass filament yarns, followed by a uniform coating of natural vermiculite mineral. As an inorganic, non-toxic, and excellent fireproof material, vermiculite forms a dense protective shield on the fabric surface, effectively dispersing heat, enhancing temperature resistance, and boosting abrasion performance. This product combines the mechanical strength of fiberglass with the superior high-temperature protection of vermiculite, making it ideal for extreme-heat industrial and commercial applications.
Identification and Parameters:
Overall Thickness (mm) | 0.75, 1.4, 2.0, 3.0 |
Area Weight (g/m²) | 500, 610, 1080, 1400, 1900 |
Vermiculite Content | 40-80% by weight in coating |
Coating Thickness | 0.3-2.0 mm (unexpanded) |
Width (mm) | 1000, 1500 (customizable) |
Temperature Resistance | Continuous: 650-950°C (1200-1742°F), Peak: up to 1100°C (2012°F) short-term |
Expansion Ratio | 5:1 to 20:1 (volume increase when heated) |
Water Absorption | 5-20% by weight (unless treated) |
Linear Shrinkage | <3% at 1000°C (high-quality grades) |
Tensile Strength | 1000-4000 N/50mm (varies with coating thickness). |
Color | Blue, Black, Bronze |
What are the key features of vermiculite coated fiberglass cloth?
Base Material: High-temperature texturized fiberglass (excellent tensile strength and dimensional stability).
Coating Advantage: Natural vermiculite coating—non-toxic, inorganic, and uniformly bonded (no flaking or shedding).
Temperature Performance: Superior heat resistance with even heat dispersion.
Protective Properties: Inherent flame retardancy, abrasion resistance, and resistance to thermal shock.
Mechanical Flexibility: Balanced rigidity and flexibility for easy fabrication, wrapping, and installation on curved/irregular surfaces.
Chemical Stability: Resists most acids, alkalis, and organic solvents (suitable for harsh industrial environments).
Safety: Non-toxic, no harmful fumes when exposed to high temperatures; complies with environmental standards.
What are the advantages and benefits of vermiculite coated fiberglass cloth?
Compared To: | Advantages of Vermiculite Coated Fiberglass |
Uncoated Fiberglass | Fire resistance, intumescent protection, better insulation value, protection from direct flame. |
Silicone Coated | Much higher temperature capability (1100°C vs 260°C), intumescent action, true fire barrier rather than just flame retardant. |
Ceramic Fiber Cloth | More flexible, intumescent action provides better insulation at lower thickness, often lower cost. |
Intumescent Paints | Pre-formed coating won't run or sag, consistent thickness, integrated reinforcement, more durable. |
Mineral Wool Blankets | More flexible, easier to install on complex shapes, can be sewn and fabricated. |
What applications is vermiculite coated fiberglass cloth utilized for?
Vermiculite Coated Fiberglass Cloth is widely used in high-temperature, fire-protection, and industrial scenarios, including:
-Welding & Metalworking: Welding blankets (protects workers/tools from sparks/slag), cutting torch shields, and molten metal splash guards.
-Industrial Furnaces & Kilns: Furnace curtains, door seals, insulation liners, and heat containment for boilers, ovens, and kilns.
-Pipe & Equipment Insulation: High-temperature pipe wrapping/lagging, exhaust manifold wraps, and insulation for valves/flanges.
-Expansion Joints & Ducts: Flexible seals for industrial ducts, boiler expansion joints, and high-temperature air handling systems.
-Machinery & Automotive: Engine heat shields, turbocharger wraps, and protection for automotive/heavy machinery components.
-Building & Construction: Fireproof partitions, elevator shaft fire barriers, and temporary fire protection during construction.
-Aerospace & Marine: Thermal insulation for aircraft engine components and marine exhaust systems (resists saltwater and high heat).
-Chemical & Petrochemical: Covers for high-temperature reactors, chemical tank insulation, and corrosion-resistant liners.
-Emergency Fire Protection: Fire blankets for equipment/personnel, and fire containment covers for hazardous materials.
-Stress Relief: Thermal wrapping for metal components during stress relief heat treatment.
How to store and handle vermiculite coated fiberglass cloth?
Store in a clean, dry, and well-ventilated area with relative humidity <70% and temperature <40°C.
Avoid direct sunlight, high humidity, and contact with oil, chemicals, or sharp objects (prevents coating damage).
Keep the original packaging sealed when not in use to prevent dust accumulation and moisture absorption.
For "used" material: Handle with care to minimize dust generation; wear protective gloves/masks if necessary.
Stack neatly (max height ≤1.2m) to avoid fabric deformation or coating cracking.
FAQ
Q1: Is vermiculite coated fiberglass cloth safe? Does it contain asbestos?
A: Vermiculite is asbestos-free and non-toxic. However:
-Some historical vermiculite mines were contaminated with asbestos.
-Modern industrial vermiculite is carefully sourced and tested to be asbestos-free.
-Dust from cutting can be irritating - use proper PPE.
Q2: Can vermiculite coated fiberglass cloth get wet? What about humidity?
A: Standard vermiculite coatings are hygroscopic (absorb moisture). Effects of moisture:
-Reduces effectiveness until dried
-Can cause coating degradation if freeze-thaw cycles occur
-Increases weight significantly
-Moisture-resistant versions are available with hydrophobic treatments
Q3: What is the lifespan of vermiculite coated fiberglass cloth? Does it degrade over time?
A:
-Indoor, dry conditions: 15-25+ years
-Outdoor conditions: 5-10 years (unless specially treated)
-Degradation mechanisms: Moisture absorption, physical damage, UV exposure (if outdoors)
-Periodic inspection recommended for critical applications
Q4: Can vermiculite coated fiberglass cloth be painted or coated over?
A: Generally not recommended as additional coatings can:
-Inhibit intumescent expansion
-Create adhesion problems
-Introduce flammability
If aesthetics are important, specify colored during manufacturing with inorganic pigments.
Q5: What are the limitations of vermiculite coated fiberglass cloth?
A:
1.Moisture sensitivity (unless treated)
2.Fragility: Coating can crack if sharply bent or impacted
3.Weight: Heavier than polymer coatings of similar thickness
4.Limited flexibility compared to silicone or PVC
5.Installation expertise required for optimal performance
Q6: Is vermiculite coated fiberglass cloth suitable for outdoor use?
A: Only with specific formulations that include:
-Water repellent additives
-UV stabilizers
-Flexible binders resistant to thermal cycling
-Even then, expect reduced service life compared to indoor use
Q7: Is vermiculite coated fiberglass reinforced?
A: Our standard product is plain (unreinforced), but wire-reinforced versions (steel or fiberglass wire) are available upon request.
