What is the manufacturing process of fiberglass? | FUNAS Guide

Tuesday, 05/13/2025

Explore the step-by-step fiberglass manufacturing process for thermal insulation professionals, covering raw materials, melting, fiberizing, and quality control.

Table of Contents

Supports sustainable building standards.

References

- Glass Manufacturing Council. “About Glass Fibers.” 2023.

- Owens Corning. “Fiberglass Insulation Technical Data.”

- ASTM International. “Standard Specification for Glass Fiber Thermal Insulation,” C553.

The manufacturing process of fiberglass combines precise material blending, state-of-the-art melting, and fiberizing technology. This results in versatile insulation products, meeting the stringent requirements of today’s energy-efficient, safe, and sustainable buildings. For detailed product solutions, contact FUNAS.

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