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A fiberglass angle is an L-shaped structural profile produced through the pultrusion process using continuous fiberglass reinforcement and thermoset resin. Its geometry is similar to a steel angle, but the material composition is fully non-metallic.
Fiberglass angles are commonly used for:
Structural framing
Edge protection
Bracing and stiffening
Support for panels, grating, and equipment
Because they do not rust or corrode, FRP angles are widely specified in chemical plants, wastewater facilities, marine environments, and outdoor industrial structures.
Equal angles have two legs of identical width and thickness. This symmetrical design provides balanced load distribution and simplifies alignment during installation.
Typical applications include:
General framing
Bracing members
Corner reinforcement
Equal fiberglass angles are the most commonly used profile due to their versatility.
Unequal angles feature legs of different widths, allowing designers to optimize load capacity and fit specific structural constraints.
They are often selected for:
Edge framing where space is limited
Asymmetric load conditions
Custom structural layouts
Both equal and unequal FRP angles are pultruded to ensure dimensional consistency and repeatable performance.
For available profiles, visit our FRP Angle Product Page.
Fiberglass angles are available in a wide range of standard sizes to suit common structural requirements.
Typical size ranges include:
Leg width: 25 mm – 150 mm
Wall thickness: 3 mm – 12 mm
Length: supplied in standard stock lengths or cut to size
These standard dimensions support efficient procurement and fast project execution.
For projects with specific load or space requirements, custom sizes can be produced, including:
Non-standard leg dimensions
Increased wall thickness
Special surface finishes
Custom FRP angles allow designers to achieve structural efficiency without over-specification.
Fiberglass angles use continuous longitudinal fibers to carry primary tensile and bending loads. Additional stitched mats provide transverse strength and improve resistance to impact and cracking.
This engineered fiber layout ensures stable performance along the full length of the profile.
The resin system determines environmental resistance and service life.
Common options include:
Polyester resin: suitable for general industrial use
Vinyl ester resin: enhanced resistance to chemicals and moisture
Fire-retardant resin: used where flame spread performance is required
Resin selection should be based on exposure conditions rather than strength alone.
Fiberglass angles offer a balanced combination of strength, stiffness, and durability.
Key performance characteristics include:
High strength-to-weight ratio
Excellent corrosion resistance
Electrical and thermal insulation
Stable mechanical behavior over time
While FRP angles have lower stiffness than steel, they are engineered to meet structural requirements when designed with appropriate deflection limits and safety factors.
To understand how FRP angles integrate into complete structural systems, visit our Official FRP Structural Solutions Page.
Fiberglass angles are increasingly specified due to:
No corrosion or rust
Reduced maintenance cost
Lightweight handling and faster installation
Long service life in harsh environments
These advantages make FRP angles suitable for permanent industrial and infrastructure projects.
Yes. They are designed for structural framing and reinforcement applications.
In corrosive or electrically sensitive environments, they are often preferred.
Yes. Both standard and custom unequal angles can be produced.
No. Corrosion resistance is inherent to the material.
Yes. UV-resistant surface veils support long-term outdoor exposure.
Service life commonly exceeds 30–50 years depending on environment and design.
Fiberglass angles are versatile, corrosion-resistant structural profiles designed for demanding industrial environments. With flexible sizing options, engineered material systems, and reliable mechanical performance, FRP angles provide long-term value where steel angles face durability and maintenance challenges. For projects focused on lifecycle performance and reduced operating cost, fiberglass angles are a dependable structural solution.
