Views: 0 Author: Site Editor Publish Time: 2026-09-01 Origin: Site
Modern power cables, optical fiber cables, fire-resistant cables and industrial cables must withstand tensile loads, bending, abrasion, heat, moisture and demanding installation conditions.
While conductors and optical fibers perform the main transmission function, the long-term reliability of a cable also depends on its reinforcement, binding, bedding, separation and protective materials.
E-glass fiberglass materials offer a useful combination of high tensile strength, low elongation, dimensional stability, electrical insulation and heat resistance. Depending on the cable design, fiberglass yarn, woven fiberglass tape and fiberglass tissue can perform different functions within the cable structure. Basalt fabric may also be considered for selected high-temperature and fire-resistant cable applications.
JLON supplies fiberglass yarn, woven fiberglass tape, fiberglass tissue and basalt fabric for cable manufacturers. Product specifications can be selected or customized according to the required tensile strength, linear density, width, thickness, surface treatment and cable production process.
Table of Contents
E-glass fiberglass is a continuous glass fiber originally developed for electrical insulation applications. It is commonly called alkali-free fiberglass in China because it contains a much lower level of alkali metal oxides than traditional medium-alkali and high-alkali glass fibers.
The term “alkali-free fiberglass” does not mean that the material contains absolutely no alkali. It is an industrial classification used to distinguish E-glass from other glass compositions.
E-glass should also not be confused with alkali-resistant glass, commonly known as AR-glass. AR-glass contains zirconium oxide and is primarily designed to resist alkaline environments in cement and concrete products.
E-glass fiberglass is widely used in cable, electrical insulation and industrial textile applications because of its balanced mechanical, electrical and thermal properties.
Continuous glass filaments provide high tensile strength and can help cable structures withstand pulling and handling forces.
The final reinforcement performance depends on the yarn construction, linear density, filament diameter, sizing system and amount of fiberglass used in the cable.
E-glass fibers have relatively low elongation under load. This property can help limit excessive cable stretching and reduce the transfer of tensile stress to conductors or optical fibers.
Fiberglass is electrically non-conductive. It can therefore be used in all-dielectric cable constructions where metallic reinforcement is undesirable.
Fiberglass yarns and fabrics maintain relatively stable dimensions under mechanical load and temperature changes. This helps retain the shape and position of cable components during production and service.
Glass fibers are inorganic and do not support combustion. They can provide a stable reinforcing or supporting layer in selected heat-resistant and fire-resistant cable systems.
However, the fire performance of a finished cable depends on the complete construction, including insulation, fillers, wrapping materials and outer sheath.
E-glass fiberglass has good resistance to many industrial chemicals and absorbs little moisture. Additional coatings may be required when specific water-blocking, bonding or chemical-resistance performance is needed.
Cable components experience mechanical and environmental stresses during production, installation and long-term operation. Fiberglass materials can help manage these stresses when they are correctly selected and incorporated into the cable structure.
Cable manufacturing involves continuous processes such as stranding, binding, wrapping, armoring and sheathing.
Fiberglass yarn or woven fiberglass tape can hold stranded cable components together before the application of armor or an outer sheath.
A wrapped fiberglass layer can help the cable core maintain a stable and relatively round shape during subsequent manufacturing operations.
Fiberglass tape or tissue may be used to separate adjacent cable layers and reduce direct contact between the cable core, protective compounds, armor and outer sheath.
Consistent yarn tension, tape width, roll quality and unwinding behavior help reduce production interruptions on high-speed cable manufacturing lines.
Cables may be pulled through ducts, bent around corners, suspended between supports or installed in confined spaces.
Fiberglass reinforcement can help carry part of the pulling load and reduce the mechanical stress transferred to conductors or optical fibers.
Low-elongation fiberglass materials can help limit excessive stretching or deformation during installation.
Fiberglass can provide reinforcement without creating a conductive path. This is especially useful for all-dielectric optical cables and cables installed near electrical infrastructure.
After installation, cables may be exposed to vibration, temperature changes, moisture, chemicals and long-term mechanical loading.
Fiberglass materials can support the cable structure and help maintain the position of internal components.
Woven fiberglass tape and basalt fabric may be evaluated as supporting or reinforcement layers in cables operating under elevated-temperature conditions.
The inorganic composition of glass and basalt fibers provides resistance to many environmental and chemical conditions. The complete cable system must still be tested for the intended operating environment.
E-glass fiberglass yarn consists of multiple continuous glass filaments gathered together to form a yarn.
The filaments are protected by a sizing system that helps control fuzz, improve processing performance and provide compatibility with subsequent coatings or matrix materials.
Fiberglass yarn specifications can vary significantly depending on the intended application.
Fine filaments are commonly used for textile processing and electrical insulation applications. The filament diameter affects yarn flexibility, surface characteristics and processing behavior.
Linear density is generally expressed in tex, which indicates the mass in grams per 1,000 meters of yarn.
A higher tex normally means that the yarn contains more glass fiber per unit length, but tex alone does not determine breaking strength or cable suitability.
Fiberglass yarn can be supplied as a single yarn or as multiple yarns plied together. Twist direction and twist level affect handling, abrasion resistance, flexibility and weaving performance.
Sizing protects the glass filaments during processing. It can also affect adhesion, coating compatibility, abrasion resistance and yarn stability.
The sizing should be selected according to whether the yarn will contact PVC, PE, XLPE, rubber, resin, adhesive or another cable compound.
JLON supplies fine E-glass fiberglass yarn specifications such as D450.
D450 is an English yarn-count designation for a fine continuous-filament fiberglass yarn. It describes the yarn size but does not independently define its tensile strength, sizing or end-use suitability.
D450 may be evaluated for textile, binding, insulation or other cable-related applications, depending on the complete technical specification.
However, D450 should not automatically be described as a high-load optical cable strength member unless the required breaking strength, elongation, sizing and processing performance have been confirmed.
For dedicated tensile reinforcement, cable manufacturers may require a different tex, ply construction or surface treatment.
Fiberglass yarn may be used as a flexible, non-metallic reinforcement material in selected optical cable structures.
The yarn may be applied longitudinally or helically around the cable core. It can help carry tensile loads generated during cable handling and installation.
Because fiberglass has relatively low elongation, a properly designed fiberglass reinforcement layer can help reduce the tensile stress transferred to the optical fibers.
The reinforcement system must be designed according to the required cable tensile rating.
Fiberglass yarn is electrically non-conductive. It may therefore be used in all-dielectric optical cables where metallic strength members are not preferred.
All-dielectric cables can be useful in environments where grounding, lightning exposure or electromagnetic interference must be considered.
Certain optical cable designs use glass yarn layers to provide moderate rodent deterrence. The glass filaments can make the cable less attractive and more difficult for rodents to penetrate.
This should not be described as complete rodent protection unless the finished cable has passed the applicable testing.
Fiberglass yarn can be coated with a water-swellable material. When exposed to water, the coating expands and helps limit longitudinal water migration through the cable.
Standard untreated fiberglass yarn is not automatically water-blocking. Water-blocking yarn requires a dedicated coating and verified swelling, absorption and water-penetration performance.
Fiberglass yarn may also be incorporated into selected power, control and industrial cable structures.
Fiberglass yarn can be used to hold cable components together before wrapping, armoring or sheathing.
Fine fiberglass yarn can be processed into woven tapes, braided sleeves and other electrical insulation textiles.
Fiberglass yarn may serve as the base material for heat-resistant woven or braided products. The temperature rating of the finished product also depends on the sizing, coating and other components.
Selected fiberglass yarn constructions can provide reinforcement without adding a metallic component to the cable.
The required yarn specification must be determined according to tensile load, cable diameter, manufacturing speed and installation requirements.
Woven fiberglass tape is a narrow textile manufactured from continuous fiberglass yarn.
When made with E-glass yarn, it may also be described as E-glass woven tape or alkali-free fiberglass woven tape.
Unlike loose yarn, woven fiberglass tape has an organized warp-and-weft structure.
Warp yarns run along the length of the tape and normally provide the primary longitudinal tensile performance.
Weft yarns run across the width of the tape and help maintain its width, shape and woven structure.
Edge quality is important for continuous wrapping. Stable edges help reduce fraying and loose filaments during high-speed processing.
Woven tape may be supplied untreated, heat-treated, coated or laminated. Each construction provides different processing and end-use properties.
Woven fiberglass tape can be helically wrapped around a cable core to hold internal components together.
The tape helps stabilize stranded components and maintain a controlled cable shape before armoring or sheathing.
Consistent width, roll tension and edge quality allow the tape to unwind more reliably during continuous cable production.
The wrapped tape can reduce movement of fillers, insulated conductors and other components during subsequent processing.
Fiberglass tape may be positioned between different cable layers.
The tape can provide a separation or support layer between the cable core and metallic armor, depending on the cable design.
A fiberglass tape layer can help reduce direct friction or contact between cable components during manufacturing and service.
Selected woven tapes can carry or support coatings, resins or other protective compounds when the tape construction is compatible with them.
The inorganic glass structure makes fiberglass tape suitable for evaluation in heat-resistant cable systems.
Fiberglass tape may support or hold other insulation materials in position.
The woven structure can provide mechanical integrity to wrapped insulation systems.
Bare fiberglass tape does not provide all the properties required by a fire-resistant cable. It may need to be combined with mica tape, silicone rubber, flame-retardant fillers or other insulation materials.
These two materials should not be treated as the same product.
Woven fiberglass tape is a narrow textile manufactured by interlacing fiberglass yarns. It normally has no pressure-sensitive adhesive unless specifically coated.
Filament tape generally consists of glass filaments laminated to a polymer backing with pressure-sensitive adhesive. It is commonly used for packaging, bundling and industrial fastening.
Cable manufacturers must clearly specify which construction they require.
Fiberglass tissue is a lightweight nonwoven material made from randomly distributed glass fibers held together by a binder.
It differs from woven fiberglass tape because it does not have a regular warp-and-weft structure.
The performance of fiberglass tissue depends on the glass fibers, binder system and manufacturing process.
Basis weight affects thickness, tensile performance, porosity and the amount of protective compound the tissue can carry.
The binder holds the fibers together and influences flexibility, temperature resistance, chemical compatibility and processing behavior.
Porosity affects the penetration and retention of bitumen, mastic, resin or other protective compounds.
Fiberglass tissue normally has lower tensile strength than woven tape. It is generally used as a carrier or support layer rather than the main cable strength member.
Fiberglass tissue may be used in selected armoured cable structures.
The tissue can support a bedding or protective compound beneath or around the metallic armor.
It may provide separation between the cable core, bedding, armor and outer sheath.
The porous tissue structure can help carry and distribute bitumen, mastic or another protective compound.
Bitumen has traditionally been used in some cable constructions to provide moisture and corrosion protection.
Fiberglass tissue can act as a carrier that helps retain bitumen and form a more consistent protective layer.
A bitumen-impregnated tissue layer may help protect metallic armor against moisture and corrosion.
The binder and tissue structure must be compatible with the application temperature and viscosity of the bitumen.
Selected fiberglass tissue products may be evaluated as support or separation layers in fire-resistant cable constructions.
The glass fibers provide an inorganic structure that does not support combustion.
The tissue may help keep insulation, wrapping and protective layers separated or properly positioned.
The fire resistance of the finished cable cannot be determined from the fiberglass tissue alone. Complete cable testing is required according to the relevant fire and circuit-integrity standards.
Basalt fabric is manufactured from continuous basalt fibers produced by melting selected natural basalt rock.
Basalt fabric is not a type of E-glass fiberglass fabric, although both are inorganic mineral-fiber textiles.
Basalt fibers retain useful physical stability at elevated temperatures, making basalt fabric suitable for evaluation in high-temperature cable constructions.
The woven basalt structure can provide reinforcement and support to insulation or protective layers.
Basalt fibers provide resistance to many chemicals and harsh industrial environments.
Basalt fiber itself does not support combustion, although coatings and other cable materials can affect the fire behavior of the complete system.
Basalt fabric can help support and retain adjacent insulation or fire-protection materials.
Narrow basalt fabric or basalt tape may be wrapped around cable components in selected high-temperature constructions.
The fabric can provide structural support when other polymeric materials begin to soften or degrade under heat.
Basalt fabric should not automatically be described as a complete fire barrier. Fire survival, circuit integrity, smoke generation and flame propagation must be verified on the complete cable.
Basalt fabric may be considered for industrial cables exposed to heat, chemicals or harsh operating environments.
Potential applications include cables used in metallurgical equipment, industrial furnaces, power-generation facilities and other high-temperature installations.
Material selection should be based on the required operating temperature, cable flexibility, chemical exposure and relevant testing standards.
Fiberglass yarn is mainly considered for flexible reinforcement, binding, textile processing and the production of woven or braided cable materials.
Important parameters include tex, filament diameter, twist, ply construction, breaking strength, elongation and sizing.
Woven fiberglass tape is mainly used for cable-core binding, wrapping, shape retention, layer separation and reinforcement of insulation systems.
Important parameters include width, thickness, areal weight, weave, tensile strength, edge quality and surface treatment.
Fiberglass tissue is mainly used as a carrier, bedding, separation or support layer in armoured, bitumen-protected and selected fire-resistant cables.
Important parameters include basis weight, thickness, binder type, porosity, tensile strength and compound absorption.
Basalt fabric may be evaluated for reinforcement, high-temperature wrapping and support of insulation or protective layers in specialized cables.
Important parameters include fabric weight, width, thickness, weave, tensile strength and temperature requirements.
The customer should first confirm whether the material will be used in an optical cable, power cable, armoured cable, fire-resistant cable, control cable or industrial cable.
The material may be required for tensile reinforcement, binding, bedding, compound carrying, layer separation, insulation support or heat protection.
Confirm tex, breaking strength, elongation, twist and ply construction.
Confirm width, thickness, areal weight, tensile strength and weave construction.
Confirm basis weight, binder type, porosity, tensile strength and compound absorption.
Confirm fabric weight, width, thickness, weave, temperature resistance and mechanical requirements.
JLON should be informed if the material will contact PVC, PE, XLPE, rubber, bitumen, mastic, resin, adhesive or another cable compound.
The customer should provide information about production speed, winding tension, roll dimensions, joint limitations and required edge quality.
Material data can support preliminary selection, but the finished cable must be tested for tensile performance, bending, aging, electrical insulation, water resistance and fire behavior.
JLON supplies fiberglass and high-performance fiber materials to manufacturers in international markets.
JLON can supply E-glass fiberglass yarn, woven fiberglass tape, fiberglass tissue and basalt fabric for different cable applications.
Widths, linear densities, roll lengths, surface treatments, fabric weights and packaging can be adjusted according to the customer’s production requirements.
JLON focuses on stable tensile performance, dimensional control, roll quality and continuous processing performance.
Samples and technical data can be provided for customer evaluation before commercial production.
JLON supports repeat and large-volume orders for cable manufacturers and industrial material distributors.
E-glass fiberglass materials provide a useful combination of tensile strength, electrical insulation, dimensional stability and heat resistance for cable manufacturing.
Fiberglass yarn can provide flexible, non-metallic reinforcement in selected optical, power and industrial cables. Woven fiberglass tape can be used for cable-core binding, wrapping and layer stabilization. Fiberglass tissue can act as a carrier, bedding or separation layer in armoured and bitumen-protected cables. Basalt fabric provides an additional option for specialized high-temperature and fire-resistant cable systems.
Contact JLON with the following information:
1. Cable type and application
2. Required material structure
3. Yarn tex or fabric basis weight
4. Required width and thickness
5. Minimum tensile strength
6. Surface treatment or coating
7. Roll length and packaging requirements
8. Intended production process
JLON can help evaluate a suitable material specification and provide technical data or samples for production testing.
Contact JLON to request technical data, samples or a customized fiberglass reinforcement solution for your cable manufacturing project.
