One of the most frequently asked questions customers ask United Insulation in international trade and inquiries about insulation materials is: "Is Glass wool the same as fiberglass? The answer is: They are essentially the same material, just the names and specific uses differ!

1.Completely same composition

The centrifugal or flame-blowing operation produces fiberglass from molten glass, and its main raw materials are crushed glass, quartz sand, and limestone, etc. Its fiber diameter is normally 3–10 micrometers.

 

2.Different names correspond to the different fields of application

- Glass wool: Refers specifically to those loose, rolled or board-shaped glass fiber products that have a density of 10–96 kg/m³ used for building insulation and sound absorption and are usually faced with aluminum foil.

- Fiberglass: A generic term that encompasses:

- Glass Wool for building insulation

- Fiberglass yarn, cloth, and chopped strand mat Used in FRP composites, boats, automotive bodies

- Continuous glass fibre - used in the reinforcement of wind turbine blades

- Textiles of fiberglass -high-temperature-resistant ropes and cloths.

Just remember: All glass wool is made of glass fiber, but not all glass fiber is called glass wool.

 

3.Why are overseas customers easily confused?

In European and American markets, "Fiberglass Insulation" usually directly refers to what we call glass wool rolls/boards; in the United States, all glass fiber reinforced plastics (GFRP) are referred to as "Fiberglass".

 

United Insulation specializes in exporting Glass Wool and Rock Wool for building insulation purposes, all of which meet the standards of EU-CE, A1 non-combustible, and zero-formaldehyde. They have been exported to more than 160 countries.

 

 Conclusion: Glass wool = fiberglass, used in building insulation; same composition but different applications! Next time a customer asks you, confidently say, "Yes, glass wool is a type of fiberglass specifically produced for thermal and acoustic insulation."

 

Looking for aluminum foil glass wool rolls, pipe shells, boards, or high-density rock wool? Feel free to contact United Insulation, as we make only genuine building insulation glass wool!