valmiera glass fiberglass fabric
Fiberglass: How is it made?

How is fiberglass made?

Fiberglass is lightweight, strong, and less brittle. One of the most appealing features of fiberglass is that it can be molded into different shapes. This explains why fiberglass is widely used in construction, civil engineering, commercial and residential products, aircraft, roofing, and sporting equipment. There are three varieties of fiberglass, each with its own set of characteristics:

  • E-glass that can withstand temperatures of up to 600°C. The electrical resistance qualities of e-glass are well-known.
  • HR-glass with an 800°C temperature resistance. HR-glass is an aluminosilicate glass that is alkali-free and free of boron oxide and fluorine. In certain ways, this glass might completely replace E-glass. The temperature resistance of this glass up to 800°C is its most essential property.
  • Glass made of SiO2 with a heat resistance of 1000°C or higher. Fabrics made of high-silica are a new type of heat-resistant textile. Glass fiber products with a high SiO2 content make excellent high-temperature insulators because they may be utilized for long periods without losing their characteristics or melting vaporizing at temperatures of up to 1000oC.

Glass is melted to a molten state and then squeezed through extremely thin holes to make fiberglass. This results in exceedingly thin glass filaments—so light, in fact, that they are best measured in microns. In the late 1930s, this process was used to create the substance that we now know as fiberglass.

These elastic filament threads are suitable for a variety of applications: They can be woven into larger patches of fabric or left unstructured for the more recognizable puffy texture used for insulation or soundproofing.

Glass fiber matting

Needle mat is a non-woven fiberglass material comprised of glass fibers of various sizes and shapes that are needle-felted into sheets. The material is needle punched to construct a monolith blanket of the desired thickness.

Needled mats are outstanding non-woven insulation goods created from three distinct types of glass: E-glass 600°C, HR-glass 800°C, and SiO2-glass 1000+°C. Each form of glass has its unique set of characteristics.

Glass fiber mats are non-combustible, recyclable, and environmentally friendly. Mats are great insulators; thus, they’re often utilized in pipes, refineries, heating infrastructure, automotive, and various other applications.

Stitch-bonded glass fiber

Stitch bonded mat is a non-woven fiberglass material made of glass fibers of various sizes and shapes needle-felted in sheets and stitched together with yarn. The material is needle punched to construct a monolith blanket of the desired thickness.

Stitch-bonded mats, which are made of E-glass with a heat capacity of 600°C, are ideal non-woven materials for the insulation industry. Stitching is done with polyester yarn. Glass fiber mats are non-combustible, recyclable, and environmentally friendly.

Fiberglass Mesh and Mesh Roll

valmieras stikla skiedra
Fiberglass Mesh and Mesh Roll

Fiberglass mesh is a popular choice for many applications because of its high strength-to-weight ratio, durability, and corrosion resistance. It is also non-conductive and has a low thermal expansion coefficient, making it ideal for use in extreme temperature environments. In addition to its many beneficial properties, fiberglass mesh is also easy to work with and can be cut, glued using standard tools and techniques. It is also available in a variety of colors and can be printed or painted to achieve the desired look.

The main advantages of fiberglass mesh roll are its high strength, lightweight, corrosion resistance, and low thermal conductivity. It is often used in applications where these properties are required, such as construction industries.

Woven glass fiber mesh is manufactured of alkali-free alumina borosilicate E-type glass fiber yarns and/or rovings. The mesh is constructed using leno or plain weave and has various mesh types – weights, mesh openings. The surface of glass fiber mesh is impregnated with an impregnating agent, which stabilizes the weave pattern and ensures an excellent alkali resistance, and provides protection from aggressive
environmental effects – humidity, temperature, and alkali, which is essential for external thermal insulation composite systems (ETICS or External Thermal Insulation Composites Systems).

Impregnated glass fiber mesh is used: in external thermal insulation composite systems (ETICS/ EIFS), in interior repair, in indoor plaster reinforcement, in warm flooring, for high mechanical strength. Benefits of impregnated glass fiber mesh for external thermal insulation composite systems: preserves the facade from cracks, improves crashworthiness, provides facade durability, and is compatible with all major facade systems.

Fiberglass mesh roll is available in various widths and lengths to suit a range of applications. It can be cut to size and shape using standard tools, making it easy to work with. This type of mesh is often used as an alternative to metal mesh in applications where weight is a consideration. It is also used in situations where corrosion resistance is required, such as in saltwater environments.


There are many benefits to using fiberglass products. Fiberglass is a very strong and durable material that can withstand a lot of wear and tear. It is also very lightweight, making it easy to transport and install. Fiberglass is also resistant to fire, UV rays, and moisture, making it an ideal choice for many different applications.