Para-aramid Yarn for Fiber Optic Cable

Strength Members for ADSS, OPGW & FTTH

High-performance para-aramid filament for optical fiber cable reinforcement. SinoPARA® provides exceptional strength, UV resistance, and dimensional stability — a trusted Kevlar® alternative for ADSS, OPGW, and FTTH cable manufacturing.

Among all reinforcement options, aramid fiber stands out for its unique combination of light weight, high tensile strength, thermal resistance, and non-conductivity.

So, what are the best aramid fiber solutions for fiber optic cable reinforcement? Let’s explore.

Multiple grades and finishes to meet customer requirements:

Aramid fibers, particularly para-aramid, are widely used as cable strength members due to the following properties:

  • UV-stabilized for outdoor ADSS applications
  • Water-blocking coated for OPGW and duct cables
  • Anti-wicking finish for moisture protection
  • Fine denier options for lightweight FTTH and indoor cables

Top Aramid Fiber Product Options

We offer a range of aramid fiber materials tailored to the needs of fiber optic cable manufacturers:

1. Para-Aramid Filament (High Tenacity)

  • Denier range: 150D to 3000D
  • Form: Twisted or untwisted filament yarns
  • Best for: Central strength members, ripcords, aramid yarn jackets

2. Short-Cut Aramid Fiber

  • Cut length: 3mm–12mm
  • Best for: Composite reinforcement in cable jackets and fillers

3. Aramid Yarn with Water Blocking Finish

  • Coating: Superabsorbent polymer (SAP) or water-swellable treatment
  • Use case: Loose tube or slotted-core optical cables for added water resistance

Typical Cable Types Using Aramid Fiber

  • ADSS (All Dielectric Self-Supporting) Cables
  • FTTH Drop Cables
  • Tactical Military Fiber Cables
  • Outdoor Armored Cables
  • Microduct and Ribbon Cables

Whether you’re designing aerial drop cables or high-performance telecom backbone lines, aramid reinforcement adds both mechanical integrity and design flexibility.

Case Study: Replacing Imported Kevlar® with Cost-Effective Para-Aramid

A major fiber cable producer in Southeast Asia reduced costs by 28% by switching from branded imported Kevlar® to our in-house Taparan® para-aramid yarn, without sacrificing performance. Through precise matching of denier, twist, and coating, we supported their transition in under 4 weeks.


How to Choose the Right Aramid Product

Here are 3 quick tips:

  1. For central strength members, use high-tenacity para-aramid filament ≥1500D
  2. For water blocking, select yarns with SAP coating or core-shell coating
  3. For cost-sensitive designs, balance denier count with tensile strength needs

Need help selecting the right product? Our engineers can provide custom recommendations based on your cable structure.


Request Samples or Specifications

Looking for a Kevlar® alternative for your fiber optic cable line? Contact the Sinofibra® technical team to discuss your project requirements or request free samples for testing.

  • 📦 Free samples for evaluation
  • 📄 Detailed spec sheets & MSDS
  • 📍 Fast delivery from China-based facilities
  • 🔄 Replacement solutions for Teijin®, Kevlar®, Twaron®

Choosing the right aramid fiber solution can significantly enhance the durability, strength, and cost-efficiency of your fiber optic cables. Whether you’re a cable designer, purchaser, or R&D engineer, we’re here to help you get the most out of your material selection.

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