Fiberglass Yarn: Types, Uses, and How to Source from China


Fiberglass yarn is a versatile material widely used in industries ranging from construction to aerospace. Known for its durability, heat resistance, and strength, it's a preferred choice for reinforcing composites and insulation. This guide explores everything you need to know about fiberglass yarn, including types, applications, and how to find reliable suppliers.

How to Find Reliable Fiberglass Yarn from China in 2025


China remains a leading supplier of fiberglass yarn, offering competitive prices and high-quality products. To find reliable suppliers:

  • Check certifications like ISO 9001 and RoHS compliance.
  • Review supplier history and customer feedback on platforms like Alibaba.
  • Request samples to test quality before bulk orders.
  • Negotiate MOQs (Minimum Order Quantities) and lead times.

Top Chinese manufacturers include Jushi Group and Taishan Fiberglass Inc., known for their global distribution networks.

What Buyers Should Know Before Buying Fiberglass Yarn from China


Before purchasing fiberglass yarn from China, consider:

  • Shipping Costs: Factor in logistics, especially for large orders.
  • Customs Regulations: Ensure compliance with import duties and documentation.
  • Payment Terms: Use secure methods like LC (Letter of Credit) or Escrow.
  • Quality Control: Hire third-party inspectors if needed.

Types of Fiberglass Yarn


There are several types of fiberglass yarn, each suited for specific applications:

  • E-Glass Yarn: Standard type for general-purpose use.
  • S-Glass Yarn: High-strength for aerospace and military.
  • C-Glass Yarn: Corrosion-resistant for chemical environments.
  • AR-Glass Yarn: Alkali-resistant for concrete reinforcement.

Functions and Features of Fiberglass Yarn


Fiberglass yarn offers unique benefits:

  • High Tensile Strength: Withstands heavy loads without breaking.
  • Heat Resistance: Stable up to 600°C (1112°F).
  • Electrical Insulation: Non-conductive for safe use in electronics.
  • Lightweight: Easier to handle than metal alternatives.

Scenarios of Fiberglass Yarn


Common applications include:

  • Construction: Reinforcing concrete and roofing materials.
  • Automotive: Lightweight components for fuel efficiency.
  • Electronics: Insulating circuit boards and cables.
  • Marine: Corrosion-resistant boat hulls and decks.

How to Choose Fiberglass Yarn


Selecting the right fiberglass yarn depends on:

  • Application: Match yarn type to industry needs.
  • Diameter: Thicker yarns offer more strength.
  • Coating: Silane coatings improve adhesion in composites.
  • Supplier Reputation: Prioritize certified manufacturers.

Fiberglass Yarn Q & A


Q: What is the difference between E-glass and S-glass yarn?
A: E-glass is standard for general use, while S-glass offers higher strength for demanding applications like aerospace.

Q: Can fiberglass yarn be recycled?
A: Yes, but recycling processes vary by region. Check local facilities for options.

Q: How do I store fiberglass yarn?
A: Keep it dry and away from direct sunlight to prevent degradation.

Q: What is the typical lead time for orders from China?
A: Usually 2-4 weeks, depending on order size and shipping method.

Q: Is fiberglass yarn safe for skin contact?
A: Wear gloves, as fibers can cause irritation.