Chopped Strands

Chopped Strands are reinforcing materials made from high-quality E-glass fibers. They are produced by bundling thousands of continuous glass filaments and chopping them into specified lengths, typically ranging from 3mm to 50mm. The surface of the strands is coated with a silane-based coupling agent or sizing, which ensures excellent compatibility and dispersion with various resin systems, including unsaturated polyester (UP), vinyl ester (VE), epoxy (EP), polyamide (PA), polypropylene (PP), and polybutylene terephthalate (PBT). These chopped strands are designed as reinforcement for both thermoplastic and thermoset resins and are widely used in injection and compression molding processes. Typical end-use applications include the automotive industry, home appliances, valves, pump housings, chemical corrosion control equipment, and sports apparatus. The product features low resin absorption, stable bulk viscosity, good flowability, fast and even dispersion in resins, and excellent strand integrity

  • Synonyms:

    Chopped glass strands,Fiberglass chopped strands,Chopped rovings

  • Formula:

    CaNaO4P

  • CAS NO.:

    65997-17-3

  • Package:

    25kg/bag

  • Certificate:

    ISO9001

Our Achievement

Global Reach: Our Chopped Strands has been successfully exported and applied in key markets across the globe, including but not limited to South Africa, Indonesia, Thailand, Vietnam and UAE. Our product has consistent quality and ability to meet diverse international standards.


Equivalent Alternatives: Our product has served as a reliable alternative to Owens Corning, Nippon  and 3B Fibreglass for several local manufacturers, helping them reduce costs with comparable (or even superior) results in performance.


Key Applications
  • • Thermoplastic & Thermoset Resins
  • • Building & Construction Materials
  • •Automotive Industry
  • •Bulk Molding Compounds (BMC/DMC)
The main detailed uses of the product
  • Specialty Applications
    Specialty Applications

    Its applications extend to niche areas such as lubricant additives, water treatment chemicals, and as a reactive component in some medical materials.

  • Oil Additives and Other Applications
    Oil Additives and Other Applications

    It finds application as an additive in the petroleum industry and as a component in metal surface treatment agents

  • Craft & DIY Applications
    Craft & DIY Applications

    Popular in crafts and DIY projects for making flexible molds, special effects props, and custom rubber parts because of its ease of use, non-toxic nature after curing, and flexibility.

Why Choose Our Chopped Strands?


Our chopped strands are engineered to deliver consistent reinforcement performance across a wide range of composite applications. From automotive to construction, our product stands out for its reliability and technical precision:


1.Precise Length Control (±1 mm) – Manufactured with advanced cutting technology, our strands offer tight length tolerances (e.g., 3, 4.5, 6, 12 mm) to ensure optimal dispersion and uniform mechanical properties in your compound.

2.High Tensile Strength & Modulus – Made from high‑quality E‑glass with a proprietary sizing formulation, our strands provide exceptional reinforcement, improving impact resistance and dimensional stability of final parts.

3.Superior Resin Compatibility – Our sizing chemistry is tailored for both thermoplastic (PP, PA, PBT) and thermoset (epoxy, polyester) matrices, promoting strong interfacial bonding and reducing void formation.

4.Low Static & Good Flowability – Anti‑static treatment and optimised bulk density minimise clumping and bridging, ensuring trouble‑free feeding in automatic hoppers and gravimetric blenders.

5.Heat & Moisture Resistance – With a low moisture content (<0.1%) and high thermal stability, our strands withstand demanding processing conditions (up to 250°C) without degradation or yellowing.

6.Just‑in‑Time Delivery & Technical Support – Our logistics network ensures rapid delivery, and our technical team offers on‑site or remote support for compounding trials, screw design, and process optimisation.


Commitment to Quality and Innovation
We are committed to providing high-quality   Chopped Strands that meets stringent international standards. Our focus on innovation and sustainability ensures that our products not only enhance your applications but also align with evolving environmental regulations and industry trends.


Your questions about our products