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Understanding the Different Types of Fiberglass

January 05, 2023 2 min read

Understanding the Different Types of Fiberglass - TRUE COMPOSITES

Fiberglass is a material that is used in a variety of applications, including insulation, automotive parts, aerospace components, and more. But with so many different types of fiberglass on the market, how do you know which one is right for your project? Let’s take a look at the various types of fiberglass and what makes each one unique.

Chopped Strand Mat (CSM)
This type of fiberglass consists of chopped strands that are randomly distributed throughout a sheet or roll. It is usually used as reinforcement for laminates and composites or as insulation. Chopped strand mat has low mechanical strength and thermal resistance but can be used to provide additional strength to thin parts. It is often used for boat hulls, automobile bodies, and surfboards.



Woven Roving
Woven roving fibers are arranged in a specific pattern to create strong fabrics with good dimensional stability. This type of fiberglass fabric can be woven from different materials including glass, carbon, aramid fibers, and other synthetic fibers. Woven roving fabrics have excellent mechanical properties such as high tensile strength and stiffness along with excellent fatigue resistance and corrosion resistance. They are commonly used in aerospace components such as aircraft wings and fuselages as well as boat hulls, tanks, piping systems, and other industrial applications.


When it comes to choosing the best type of fiberglass for your project or application there is no one-size-fits-all answer; it all depends on what you need it for! Chopped strand mat offers good reinforcement while woven roving provides superior mechanical strength; textiles offer great thermal insulation properties; while aramid fibers provide excellent fatigue resistance. Ultimately it comes down to your individual needs – understanding the differences between these types will help you make an informed decision about which one will work best for your application!

See our Fiberglass Repair Kits here and our Biaxial Kits here