What Are the Raw Materials of Fiber Optic Cables? Full Guide & Comparison

■ What Is the Raw Material of Fiber Optic Cables? (Full Technical Guide + Expanded Material Comparison)

ZION Communication Technical Article

Fiber optic cables are designed to provide high-speed, no-signal-loss, and EMI-free communication in telecommunication, powergrid, datacenter, broadband, and industrial applications.

Each optical cable is constructed using a precise combination of optical fibers, strength members, buffer tubes, water-blocking elements, armoring, and protective jackets.

Here is the extended technical table of all raw materials used in the fiber optic cable industry.

■ Optical Fiber (Core Material)

The active medium responsible for data transmission.

• Core & Cladding: Ultra-pure Silica (SiO₂) with Germanium doping for refractive index control.

• Coating: Dual-layer UV-cured Acrylate (Soft primary coating + Hard secondary coating) to protect the glass.

• Identification: UV-cured color inks for easy fiber identification (Standard 12 colors).

• Ribbon Matrix: UV-curable resin (for Ribbon Cables).

■ Loose Tube Materials

Base Polymers

• PBT Blends (Polybutylene terephthalate / Polyester)

• High-impact PP (Polypropylene) – affordable for short-distance cables

Loose Tube Additives

• UV stabilizers

• Anti-oxidants

• Process lubricants

To maintain stability during high-speed extrusion and during outdoor lifetime.

■ Strength Members

Beyond conventional FRP, Aramid, or Steel, ZION utilizes:

Conventional Strength Members

• FRP–aramid (drop cables with extra tensile strength)

• Glass yarn sheath for rodent deterrent

• Basalt fiber rod (for high-temperature applications)

Strength Members for Extreme Environments

• Ceramic reinforced rod for industrial applications

• Extra high strength Aramid (1500–3000D) for ADSS (Long Span Application)

■ Water-Blocking System

Dry Water-Blocking Technologies

• SAP-coated non-woven fabric

• Super absorbent powder micro-particles

• Dry core (no gel for easy field splicing)

Grease & Gel Types

• Non-drip thixotropic gel for loose tubes

• Cable filling jelly (petroleum-based) for anti-moisture central filling

• High-viscosity grease for OPGW stainless tubes

Depending on gel-fill, dry core, blowing distance, or temperature rating.

■ Ripcord Materials

Other ripcord materials:

• High-tenacity polyester (HT-PET)

• Tape-bonded laminated ripcords for easy jacket removal

■ Armoring Materials

Metal Armoring Types

• CCA (Copper-clad aluminum armor) for Shielding / Conductive Elements

• Stainless-steel woven mesh for flexible cables

• Double steel tape (dual CST) for ultra-high crush

Non-metal Armoring

• Aramid yarns for explosives & mine applications

• Glass yarns for anti-rodent protection

• Aramid + Fiber glass composite for tough but lightweight

■ Outer Jacket Materials

Special Compound Jackets

• Anti-termite PE (insect-repelling chemical blend)

• Anti-rodent LSZH (mineral compounds)

• Cold-resistant PE (−60 °C rating)

• Weather resistant black polyethylene 2%–3% carbon

• Anti-tracking HDPE (high voltage ADSS ≤220kV rating)

Indoor Jacket Compounds

• Flame Retardant PVC (CMP/CL2P) for USA building code

• Riser grade PVC (CMR)

• Halogen free flame retarding compound

■ Messenger Wire Materials

Other messenger wire materials:

• Phosphates for anti-corrosion

• Copper-clad steel (CCS) for affordable conductivity

• FRP – steel hybrid (rural FTTH networks)

■ Strength & Environmental Enhancers

Fiber optic cables are sometimes bundled with Proprietary micro-additives and layers to work better:

UV Protection Additives

• Carbon black

• Hindered amine light stabilizers (HALS)

Fire Retardant Additives

• Aluminum hydroxide (ATH)

• Magnesium hydroxide (MDH)

• Halogen-free flame-retardant masterbatch

Anti-rodent & Anti-termite Repellents

• Glass flakes, Borate, and specialized chemical repellents.

■ Metallic Components in Cable Construction

Not all cables are all-dielectric. Some applications need metallic components:

■ High-Performance Material Classes

ZION use several classes of functional materials in cable construction:

■ Comparison Table of Different Optical Cable Material Systems

■ Why Raw Materials Matter

Network Longevity: High-grade materials (like pure Silica and Virgin HDPE) minimize fiber attenuation, jacket cracking, and stress corrosion, ensuring a 25-year lifespan.

Installation Efficiency: Superior jacket materials reduce the friction coefficient, allowing for longer blowing distances and easier stripping during termination.

Total Cost of Ownership (TCO): Investing in quality materials upfront reduces splice loss and virtually eliminates maintenance costs caused by material degradation.

■ ZION Communication Material Selection Philosophy

ZION Group implements a rigorous Material Qualification System covering:

Vendor Certification

• Sourcing from tier-1 suppliers (e.g., Borealis/Dow for HDPE, DuPont™ for Kevlar, high-purity silica preforms).

In-house Performance Testing

• −40°C bend test

• 3000N crush test

• 1000m blowing distance test

• UV chamber Accelerated aging test

• Hydrostatic pressure test (for armoured cables)

25-Year Lifespan Guarantee

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