According to shape and length, glass fiber can be divided into continuous fiber, fixed-length fiber and glass wool;  According to the composition of glass, it can be divided into non-alkali, chemical resistance, medium alkali, high strength, high elastic modulus and alkali resistance (alkali resistance) glass fiber.

The main raw materials for the production of glass fiber are: quartz sand, alumina and pyrophyllite, limestone, dolomite, boric acid, soda, mirabilite, fluorite and so on.  Production methods are roughly divided into two categories: one is the molten glass directly into fiber;  One is the molten glass first made into a diameter of 20mm glass ball or rod, and then heated remelted in a variety of ways made into a diameter of 3 ~ 80μm of very fine fiber.  Through platinum alloy plate to mechanical drawing method of infinite length of fiber, known as continuous glass fiber, known as long fiber.  The discontinuous fiber made by roller or air flow is called fixed length glass fiber, generally known as short fiber

Glass fibers are divided into different grades according to their composition, properties and uses.  According to the standard level, E class glass fiber is widely used in electrical insulation materials;  Class S is a special fiber. Jiujiang xinxing Insulation Material co.,Ltd is specialized in the manufacture of epoxy fiberglass laminated sheets(one of the electrical insulation material),all of our laminate sheets are use E class glass fiber(non-alkali glass fiber) to ensure the excellent electrical properties.

Glass used in the production of fiberglass is different from other glass products.  The components of glass that have been commercialized in general for fibre are as follows:

1. High strength and high modulus glass fiber  

It is characterized by high strength and high modulus. Its tensile strength of single fiber is 2800MPa, about 25% higher than that of alkali free glass fiber, and its elastic modulus is 86000MPa, higher than that of E-glass fiber.  FRP products produced by them are widely used in military industry, aerospace, high-speed rail, wind power, bullet-proof armor and sports equipment.

2.AR glass fiber  

Also known as alkali resistant glass fiber, alkali resistant glass fiber is glass fiber reinforced (cement) concrete (referred to as GRC) stiffening material, is a high standard inorganic fiber, in the non-load-bearing cement components is the ideal substitute for steel and asbestos.  Alkali resistant glass fiber is characterized by good alkali resistance, can effectively resist the erosion of high alkali materials in cement, strong grip force, elastic modulus, impact resistance, tensile strength, high bending strength, non-combustion, frost resistance, temperature resistance, humidity change ability, crack resistance, impermeability is superior, with strong design, easy molding and other characteristics,  Alkali resistant glass fiber is a new type of environmental protection reinforced material widely used in high performance reinforced concrete.

3.D glass fiber 

Also known as low dielectric glass, used to produce good dielectric strength of low dielectric glass fiber.

In addition to the above glass fiber composition, there is now a new alkali free glass fiber, which contains no boron at all, thus reducing environmental pollution, but its electrical insulation and mechanical properties are similar to the traditional E glass.  There is also a two-glass fiber, already used in the production of glass wool, which is also said to have potential as a fiberglass reinforced material.  In addition, there are fluorine-free glass fibers, which are improved alkali-free glass fibers developed for environmental protection requirements.

You can classify glass fibers into different types, depending on the raw materials used and their proportions.

Here are 7 different types of glass fibers and their applications in everyday products:

1. Alkali glass (A-glass)  

Alkali glass or soda-lime glass.  It is a widely used type of glass fiber.  Alkali glass accounts for about 90% of all manufactured glass.  It is the most common type used to make glass containers, such as food and drink cans and bottles, and window panes.

Baking ware made from tempered sodium calcium glass is also A perfect example of A glass.  It’s affordable, highly feasible, and quite difficult.  A-type glass fiber can be remelted and softened many times, making it an ideal type of glass fiber for glass recycling.

2. Alkali resistant glass AE- glass or AR- glass

AE or AR glass stands for alkali resistant glass, which is specially used for concrete.  It is a composite material made of zirconia.

The addition of zirconia, a hard, heat-resistant mineral, makes the glass fibre suitable for use in concrete.  Ar-glass prevents concrete cracking by providing strength and flexibility.  Moreover, unlike steel, it does not rust easily.

3.Chemical glass  

C-glass or chemical glass is used as the surface tissue of the laminate outer layer of pipes and containers for storing water and chemicals.  Due to the high concentration of calcium borosilicate used in the glass formulation process, it shows maximum chemical resistance in corrosive environments.

C-glass maintains chemical and structural balance in any environment and has a high resistance to alkaline chemicals.

4. Dielectric glass

Dielectric glass (D- glass) fiber is often used in electrical appliances, cooking utensils, etc.  It is also an ideal type of fiber glass fiber due to its low dielectric constant.  This is due to boron trioxide in its composition.

5.Electronic glass

Electronic glass or E-fiberglass cloth is an industry standard that provides a balance between performance and cost.  It is a lightweight composite material with applications in aerospace, Marine and industrial environments.  E-glass’s properties as a reinforced fiber make it a darling of commercial products such as planters, surfboards and boats.

E-glass in fiberglass can be made of any shape or size using a very simple manufacturing technique.  In pre-production, the properties of E-glass make it clean and safe to work with.

6.Structural glass  

Structural glass (S glass) is known for its mechanical properties.  The trade names R-glass, S-glass, and T-glass all refer to the same type of glass fiber.  Compared with E-glass fiber, it has higher tensile strength and modulus.  The fiberglass is designed for use in the defense and aerospace industries.

It is also used in rigid ballistic armor applications.  Because this type of glass fiber is high performance, it is only used in specific industries and production is limited.  That also means s-glass can be expensive.

7.Advantex glass fiber  

This type of fiberglass is widely used in the oil, gas and mining industries, as well as in power plants and Marine applications (sewage treatment systems and wastewater treatment systems).  It combines the mechanical and electrical properties of E-glass with the acid corrosion resistance of E, C and R type glass fibers.  It is used in environments where structures are more prone to corrosion.