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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Our daily production capacity is 800 cubic meters. Delivery time varies depending on the complexity of the insulation material wholesale order, but we can deliver large quantities of customized products within 4-6 weeks after the approval date, and small quantities can be delivered within 15 days.

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We offer a wide range of rubber foam insulation with different thicknesses and specifications. Thermal insulation material manufacturer FUNAS sleeves and sheets are suitable for different application scenarios.

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Yes, our insulation products are designed with sustainability in mind. They help reduce energy consumption by minimizing heat loss and gain, and they are made from durable materials that have a long life cycle, reducing the need for frequent replacement.

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