Harnawa Insulations Private Limited

E-Glass Fiberglass Yarn is a high-strength, non-alkali glass fiber yarn widely used in electrical insulation, reinforcement, high-temperature applications, composite manufacturing, and industrial textiles. Manufactured from E-glass (Electrical Grade Glass), it offers excellent dielectric strength, high tensile strength, heat resistance, chemical resistance, dimensional stability, and moisture resistance.

E-Glass Yarn is produced by drawing molten glass into extremely fine filaments and twisting them into yarn bundles. The yarn is lightweight, flexible, and capable of withstanding temperatures up to 550°C, making it ideal for thermal and electrical insulation systems.

Commonly used in motor winding insulation, transformer insulation, cable braiding, fiberglass tape weaving, sleeving, reinforcement fabrics, FRP composites, and fire-retardant textile products.

Key Features

• High tensile strength & excellent mechanical properties
• Non-alkali electrical grade glass (E-glass)
• High dielectric strength for insulation systems
• Temperature resistance up to 550°C
• Good chemical, moisture & corrosion resistance
• Smooth, uniform filament distribution
• Flexible, lightweight, and easy to braid or weave
• Non-flammable and dimensionally stable

Applications

• Motor winding coil reinforcement
• Transformer insulation & cable braiding
• Fiberglass cloth, tapes & mesh weaving
• Sleeving manufacturing & heat insulation textiles
• Composite reinforcement (FRP/GRP applications)
• Fire blankets, thermal insulation mats, safety fabrics
• High-temperature industrial textile applications

Technical Range

• Material: E-Glass (Electrical Grade Fiberglass)
• Diameter (Filament): 4–13 microns
• Yarn Tex Range: 34 Tex to 2400 Tex
• Twist Type: S-Twist / Z-Twist / Combined
• Moisture Absorption: < 0.5%
• Thermal Resistance: Up to 550°C
• Tensile Strength: Very High
• Color: White / Off-White

Advantages

• Excellent electrical insulation properties
• Lightweight yet extremely strong
• Ideal for textile and electrical insulation manufacturing
• Long-term durability in harsh industrial environments

C Glass Fiberglass Yarn is a chemical-resistant fiberglass yarn manufactured using C-glass (Chemical-Resistant Glass). It provides excellent corrosion resistance, high-temperature resistance, electrical insulation, and tensile strength, making it suitable for industrial applications involving chemicals, acids, alkalis, moisture, and heat.

C-Glass Yarn is widely used in fiberglass cloth weaving, insulation tapes, fireproof fabrics, filtration textiles, cable braiding, FRP reinforcement, and composite structures. Compared to E-glass, C-glass offers enhanced chemical resistance, making it the preferred choice in harsh industrial environments such as chemical plants, foundries, furnace insulation, and filtration systems.

It maintains structural stability under high heat (up to 500°C) and does not burn, melt, or degrade under corrosive atmospheres. The yarn has excellent dimensional stability and is easy to weave, braid, knit or wrap.

Key Features

• Chemical Resistant Glass Fiber (C-Glass)
• Excellent resistance to acids, alkalis & corrosive environments
• High tensile strength & thermal resistance (up to 500°C)
• Good dielectric strength & electrical insulation
• Non-flammable and moisture resistant
• Smooth yarn suitable for weaving & braiding
• Stable under heat, vibration, and chemical exposure
• Ideal for filtration, insulation & reinforcement fabrics

Applications

• Fireproof fabrics & insulation textiles
• Weaving fiberglass cloth, tapes & mesh
• Cable braiding & electrical insulation materials
• Chemical filtration textiles & industry-grade bags
• FRP reinforcement for chemical tanks & pipes
• Furnace & foundry insulation materials
• Heat-resistant safety textiles & blankets

Technical Range

• Material: C-Glass (Chemical-Resistant Fiberglass)
• Filament Diameter: 4–13 microns
• Tex Range: 34 Tex – 2400 Tex
• Twist Direction: S-Twist / Z-Twist / Mixed
• Thermal Resistance: Up to 500°C
• Tensile Strength: High
• Color: White / Light Green (C-Glass Shade)

Advantages

• Better chemical resistance than E-glass
• High durability in acidic or corrosive conditions
• Safe for high-temperature electrical & thermal insulation
• Ideal for weaving and industrial fabric production

Non-Alkali E Glass Fiberglass Yarn is a high-purity, electrical-grade fiberglass yarn produced using E-glass with extremely low alkali content (<1%). This ensures superior dielectric strength, thermal stability, chemical resistance, and tensile durability, making it one of the most widely used fiberglass yarns in the electrical, thermal, and composite industries.

The absence of alkali ensures the yarn does not degrade when exposed to heat, humidity, mechanical stress, or electrical environments. Non-Alkali E Glass Yarn is commonly used for motor winding reinforcement, transformer insulation, fiberglass tape weaving, woven cloth manufacturing, cable braiding, FRP reinforcement, and high-temperature industrial textiles.

It can withstand temperatures up to 550°C, is flame resistant, and maintains excellent mechanical strength and dimensional stability even under continuous thermal cycling.

Key Features

• Non-alkali (electrical-grade) E-glass composition
• Very high dielectric strength & insulation stability
• Temperature resistant up to 550°C
• High tensile strength and smooth filament texture
• Resistant to chemicals, oils, solvents & moisture
• Non-flammable, dimensionally stable, low shrinkage
• Ideal for weaving fiberglass textiles & insulation tapes
• Excellent reinforcement in FRP composites

Applications

• Transformer and motor insulation winding
• Cable braiding & electrical insulation sleeves
• Weaving fiberglass cloth, tapes, mesh & fire blankets
• High-temperature industrial textiles
• FRP/GRP composite reinforcement
• Electronics & thermal insulation components
• Industrial filtration fabrics

Technical Range

• Material: Non-Alkali E-Glass
• Alkali Content: < 1%
• Filament Diameter: 4–9 microns
• Tex Range: 34 Tex – 1200 Tex
• Twist: S / Z / Double
• Thermal Resistance: Up to 550°C
• Tensile Strength: Very High
• Finish: Silane, Starch or Customized

Advantages

• Superior performance under electrical & thermal loading
• Excellent handling and weaving characteristics
• Longer service life in motor/transformer applications
• Best choice for high-strength fiberglass fabric production

Fiberglass Yarn is a high-strength, heat-resistant electrical and industrial textile yarn made from continuous glass filaments. It is widely used across electrical insulation, reinforcement, thermal protection, composite manufacturing, and industrial fabric production.

Manufactured from E-glass, C-glass or Non-Alkali E-glass, fiberglass yarn offers exceptional tensile strength, dielectric performance, moisture resistance, dimensional stability, and thermal endurance. It withstands temperatures up to 550°C, is non-flammable, and exhibits extremely low thermal conductivity.

Fiberglass Yarn is commonly used for motor winding binding, transformer insulation, cable braiding, woven tapes, fiberglass cloth manufacturing, fire-resistant fabrics, filtration textiles, and FRP reinforcement. Its consistency, smooth texture, and uniform filament distribution make it easy to weave, braid, knit, or wrap.

Key Features

• Excellent tensile strength & mechanical durability
• High dielectric strength for electrical insulation
• Resistant to heat, fire, moisture & chemicals
• Stable up to 550°C (depending on glass type)
• Non-flammable and corrosion-resistant
• Smooth filament structure for easy weaving and braiding
• Available in twisted, texturized, and direct yarn formats
• Suitable for industrial, electrical, and composite applications

Applications

• Motor & transformer coil reinforcement
• Cable braiding and electrical insulation sleeves
• Fiberglass cloth, mesh, tapes, and industrial fabrics
• Fireproof textiles and welding protection fabrics
• FRP/GRP composite reinforcement
• Filtration fabrics and technical textiles
• Insulation ropes, braids, bands & packing materials

Technical Range

• Material Options: E-Glass / C-Glass / Non-Alkali E-Glass
• Tex Range: 34 Tex – 2400 Tex
• Filament Diameter: 4–13 Microns
• Yarn Type: Twisted / Direct Roving Yarn / Texturized Yarn
• Thermal Resistance: Up to 550°C
• Moisture Absorption: <0.5%
• Twist: S / Z / S+Z

Advantages

• Strong, lightweight & flexible
• Long service life even under harsh conditions
• Perfect for electrical insulation & reinforcement applications
• Widely used by motor/transformer OEMs and textile industries

Fiberglass Cloth is a high-performance woven reinforcement fabric made from continuous fiberglass yarns. It is widely used in electrical insulation, heat protection, composite manufacturing, FRP/GRP laminates, aerospace components, marine structures, and industrial applications where strength and temperature resistance are required.

Fiberglass Cloth provides outstanding tensile strength, dimensional stability, chemical resistance, flame resistance, and dielectric properties. With lightweight yet strong construction, it forms the backbone of FRP composites, offering structural reinforcement with minimal weight.

The cloth is available in different weave patterns such as plain weave, twill weave, satin weave, and in various GSM thicknesses. It can also be supplied with coatings like silicone, acrylic, PTFE, vermiculite, depending on thermal protection requirements.

Key Features

• High tensile & flexural strength
• Excellent heat resistance (Up to 550°C)
• High dielectric strength for electrical insulation
• Resistant to chemicals, oils, solvents & corrosion
• Dimensionally stable and non-flammable
• Lightweight, smooth finish & uniform weaving
• Compatible with epoxy, polyester, vinyl ester resins
• Available in coated and uncoated forms

Applications

• FRP/GRP laminates and composites
• Electrical insulation & slot insulation
• Fire protection fabrics and welding blankets
• Duct liners, thermal insulation wraps
• Boat building, aerospace & automotive composites
• Filtration media and industrial textile fabrics
• Insulation jackets, expansion joints, furnace curtains

Technical Range

• Material: E-Glass / C-Glass / Non-Alkali Fiberglass
• GSM Range: 80 GSM – 600 GSM
• Thickness: 0.08 mm – 1.2 mm
• Temperature Resistance: Up to 550°C
• Weave Types: Plain / Twill / Satin
• Width: 1 Meter / 1.2 Meter / Custom
• Color: White / Off-White

Advantages

• Excellent electrical & thermal insulation properties
• Strong, flexible & long-lasting performance
• Compatible with major resin systems
• Ideal for composite reinforcement & thermal applications

Non-Alkali Fiberglass Roving is a high-strength, continuous-filament fiberglass reinforcement made from E-glass with very low alkali content (<1%), ensuring excellent electrical insulation, heat resistance, mechanical strength, and chemical stability. It is widely used in FRP/GRP composites, structural reinforcement, pultrusion, winding, laminating, and textile weaving applications.

The non-alkali composition provides superior durability in corrosive environments and prevents degradation when exposed to heat, humidity, and resins. It is compatible with epoxy, polyester, vinyl ester, PU, and phenolic resin systems, ensuring high bonding strength and composite stability.

These rovings are used to manufacture FRP pipes, tanks, ladders, profiles, woven roving fabrics, electrical conduits, auto components, and structural composites, as well as in motor insulation and cable reinforcement.

Key Features

• Non-alkali E-glass ensures high purity & insulation stability
• High tensile strength and superior mechanical durability
• Excellent compatibility with epoxy, vinyl ester & polyester resins
• Low fuzz with uniform filament distribution
• Heat resistance up to 550°C
• Moisture and chemical resistance for harsh environments
• Suitable for pultrusion, filament winding, weaving & layering
• High dimensional stability under thermal cycling

Applications

• FRP/GRP structural components
• Filament winding (pressure vessels, pipes, cylinders)
• Pultrusion profiles (rods, tubes, angles, channels)
• Woven roving & fiberglass fabric manufacturing
• Cable strength members & reinforcement
• EV components, auto parts & electrical panels
• Motor insulation and composite laminates

Technical Range

• Material: Non-Alkali E-Glass Fiberglass
• Alkali Content: <1%
• Tex Range: 300 – 4800 Tex
• Filament Diameter: 9–24 microns
• Compatible Resins: Epoxy / Polyester / Vinyl Ester / PU
• Moisture Absorption: <0.5%
• Thermal Resistance: Up to 550°C

Advantages

• Higher corrosion resistance than standard E-glass rovings
• Long service life in humid or chemical environments
• Excellent wet-out & bonding with resin systems
• Ideal for high-strength composite manufacturing

Fiberglass Rovings are high-strength bundles of continuous fiberglass filaments gathered together without twist or with controlled twist, used widely in composite manufacturing, pultrusion, winding, molding, insulation, and reinforcement applications. Manufactured from E-glass, they offer excellent mechanical strength, chemical resistance, dielectric properties, and thermal stability.

Rovings are typically used for FRP/GRP pipe manufacturing, filament winding, pultruded profiles, tanks, panels, cable reinforcements, woven roving production, and structural composite applications. They provide uniform fiber distribution, high tensile strength, low fuzz, and excellent compatibility with polyester, epoxy, and vinyl ester resins.

Fiberglass Rovings are flame-resistant, dimensionally stable, and maintain performance under repeated mechanical and thermal stress.

Key Features

• Continuous fiberglass strands in roving form
• High tensile strength & excellent load-bearing capability
• Superior resin compatibility (Polyester, Epoxy, Vinyl Ester)
• Moisture-resistant, chemical-resistant & corrosion-proof
• Excellent electrical insulation properties
• High heat resistance (up to 550°C)
• Suitable for pultrusion, filament winding & FRP molding
• Low fuzz, smooth fiber distribution & high stability

Applications

• Filament winding (pipes, cylinders, pressure vessels)
• Pultrusion profiles (angles, rods, tubes, ladders)
• GRP/FRP tanks, panels, cooling towers & structures
• Woven roving fabric manufacturing
• Cable reinforcement & protective wrapping
• Composite panels, automotive & railway components
• Electrical insulation profiles & structural parts

Technical Range

• Material: E-Glass Fiberglass
• Tex Range: 225 Tex – 4800 Tex (Various grades)
• Filament Diameter: 9–24 microns
• Roving Type: Direct Roving / Assembled Roving
• Moisture Absorption: < 0.5%
• Resin Compatibility: Polyester, Vinyl Ester, Epoxy
• Tensile Strength: Very High

Advantages

• Provides superior reinforcement in FRP/GRP composites
• Long-lasting performance under mechanical load
• Ideal for automated composite manufacturing
• Compatible with major resin systems

Fiberglass Fire Blanket is a high-temperature safety and protection textile made from woven fiberglass fabric, designed to extinguish small fires and provide a protective barrier against heat, flames, molten metal splashes, and sparks. It offers exceptional thermal resistance up to 550°C (and higher with special coatings) and is widely used in industrial, commercial, and household fire safety applications.

Fiberglass Fire Blankets are non-flammable, lightweight, flexible, and capable of smothering fires by cutting off oxygen supply. They are commonly used in welding operations, kitchens, laboratories, electrical rooms, automotive repair, industrial workshops, and emergency fire protection systems.

The blanket is soft, foldable, and easy to deploy during emergencies, making it an essential fire safety device in both residential and industrial environments.

Key Features

• Made from high-strength, woven fiberglass fabric
• Fire resistance up to 550°C (higher grades available)
• Non-flammable, non-toxic, and corrosion-resistant
• Lightweight, flexible, and easy to deploy
• Effective for smothering flame sources & emergency fire suppression
• Resistant to sparks, molten metal splash & radiant heat
• Available with silicone, acrylic, or PTFE coatings (optional)
• Long-lasting and durable safety textile

Applications

• Welding, cutting, grinding & metal fabrication
• Emergency fire suppression in homes, kitchens, labs
• Electrical panel rooms & industrial fire safety
• Automotive repair, battery workshops, EV fire protection
• Furnace and foundry heat shielding
• High-temperature thermal insulation

Technical Range

• Material: Woven Fiberglass Fabric
• Thickness: 0.43 mm – 1.5 mm
• Temperature Resistance: 550°C (Continuous)
• Coatings Available: Silicone / Acrylic / PTFE (Optional)
• Standard Sizes:
– 1 m × 1 m
– 1 m × 2 m
– 1.2 m × 1.8 m
– Custom sizes on request
• Color: White / Off-White / Red-Coated / Silver-Coated

Advantages

• Essential fire safety tool for home & industry
• Provides immediate protection during fire incidents
• Strong, flexible & long-lasting thermal protection
• Meets fire safety standards for industrial use