How to Select the Right Fiberglass Yarn
May 19, 2026
Leave a message
Clarify Core Application Requirements
Match the basic type to the application scenario
Core performance requirements for fiberglass yarn vary significantly across industries:
General reinforcement (standard FRP, conventional building materials): Choose high-volume, cost-effective **E-glass (alkali-free) yarn**, which covers over 90% of standard needs.
Building exterior insulation and concrete reinforcement: Prioritize high-alkali-resistance (AR) fiberglass yarn; meeting specific zirconia content standards is essential to ensure long-term crack resistance.
PCB electronic substrates: Electronic-grade fiberglass yarn is mandatory; it requires minimal fuzz, uniform tension, and a stable dielectric constant (around 3.7) to ensure circuit insulation performance.
Aerospace and high-load structural applications: Select high-strength S-glass yarn; its tensile strength is 30–40% higher than standard E-glass, making it suitable for high-load conditions.
High-temperature filtration and highly corrosive chemical environments: Choose acid-resistant C-glass or high-silica fiberglass yarn, capable of withstanding temperatures above 200°C and acid/alkali corrosion over the long term.
Match environmental resistance requirements
Temperature resistance: For standard ranges of 80–300°C, choose industrial-grade fiberglass yarn; for temperatures exceeding 800°C, high-purity quartz fiber yarn is required.
Chemical environment: Select acid-resistant types for contact with acidic media, and high-zirconia alkali-resistant yarn for alkaline conditions, to prevent standard fiberglass from corroding or failing.
Send Inquiry