At Aetna Plastics, we supply industrial-grade materials engineered to perform where traditional metals fall short. Fiberglass structural shapes, including the trusted Fibergrate® brand, offer a lightweight, corrosion-resistant alternative to steel and aluminum for structural support in harsh environments. From wastewater treatment to industrial platforms and walkways, fiberglass shapes deliver lasting performance with reduced maintenance and cost of ownership.

What is Fiberglass Structural Shapes / Fibergrate®?

Fiberglass structural shapes are pultruded composite profiles made from glass fiber reinforcements and thermosetting resins. These shapes combine strength, durability, and corrosion resistance while offering a fraction of the weight of traditional materials. Fibergrate structural shapes meet or exceed numerous industry standards and are ideal for applications exposed to moisture, chemicals, UV radiation, or extreme temperatures.

Common profiles include I-beams, channels, angles, square tubes, and round rods—designed for use in structural frameworks, platforms, supports, and more.

Why Choose Fiberglass Structural Shapes / Fibergrate®?

Whether you’re building a platform in a corrosive plant or replacing rusted steel components, fiberglass shapes offer long-term value with lower maintenance.

Key Properties:

  • Corrosion Resistant: Performs in chemicals, saltwater, and extreme weather.
  • Lightweight: Up to 75% lighter than steel—easy to transport and install.
  • Strong & Durable: High strength-to-weight ratio; excellent load-bearing performance.
  • Non-Conductive: Electrically and thermally non-conductive for safer installations.
  • Low Maintenance: No painting or coating required—resists rust, rot, and decay.
  • Fire Retardant: Meets ASTM E84 requirements for flame spread and smoke development.

Standard Shapes and Forms

Aetna Plastics offers a comprehensive range of Fibergrate® fiberglass shapes:

  • I-Beams & Wide Flange Beams
  • Channels & Angles
  • Square & Round Tubes
  • Flat Strip, Rods, and Custom Profiles

Custom lengths, colors, and resin systems are also available to meet your project’s environmental and mechanical requirements.

Applications of Fiberglass Structural Shapes / Fibergrate®

Due to their resistance to corrosion and non-conductive nature, fiberglass structural shapes are ideal for:

  • Wastewater & Water Treatment Plants: Platforms, walkways, and handrails
  • Chemical Processing Facilities: Structural supports in corrosive environments
  • Marine & Offshore: Decking, access platforms, and ladders exposed to saltwater
  • Pulp & Paper Mills: Corrosion-resistant structural reinforcements
  • Transportation & Infrastructure: Bridges, grating systems, and utility supports
  • Electrical & Telecom: Safe, non-conductive framing and enclosures

Colors and Finishes

Most Fibergrate® fiberglass shapes are available in standard gray, green, or safety yellow. Custom colors, fire-retardant formulations, and UV-inhibiting finishes are available depending on your performance needs.

Why Choose Aetna Plastics?

Aetna Plastics partners with industry leaders like Fibergrate® to deliver fiberglass solutions built for strength, safety, and corrosion resistance. Whether you need stock shapes or help with a custom structural system, our team provides the expertise and inventory you can count on.

Benefits of Partnering with Aetna Plastics:

  • Complete Inventory: Wide selection of fiberglass profiles ready to ship
  • Custom Fabrication: Cut-to-length, hole drilling, and assembly available
  • Engineering Support: Application guidance and design consultation
  • Responsive Service: Fast quotes, quick turnaround, and reliable logistics
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Get Started Today

Looking for a durable alternative to steel in corrosive or demanding environments? Fiberglass structural shapes and Fibergrate® solutions are built to last. Contact us today today to request a quote or speak with our materials team about your next project.

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