FRP applications by structure and environment

Pultruded fiberglass profiles are not a single product — they are a fabrication platform. The same wide-flange beam can carry a chemical plant walkway, a pedestrian bridge, or a solar farm support, but the resin system, fiber architecture, surface finish, and connection strategy change between those uses. The six application categories below are recurring F1 Composite configurations, each linked to engineering data, tools, products, and project evidence.

Three questions decide most of the specification:

1. What is the chemical and thermal environment? Vinyl ester resin handles 60% sodium hypochlorite and dilute sulfuric acid where isophthalic resin will degrade. Continuous service above 80°C requires verification — our standard isophthalic system is rated to 80°C, vinyl ester to 100°C, and high-temp epoxy to 150°C.
2. What is the fire performance requirement?ASTM E84 Class 1 is achievable; Class 1 with smoke-developed index <50 requires a specific resin system; full FRA (Fire Reaction Approval) per IMO requires further. We classify our standard profiles by fire class on every datasheet.
3. What connections are involved? Are you mating to existing carbon steel (galvanic isolation needed), to other FRP (bolted or bonded), or to concrete (chemical anchor + epoxy bedding)? The application detail pages cover the typical connection sets.

Application versus industry: Industries describe who buys (construction, energy, marine, etc.). Applications describe what gets built (cable tray, cooling tower, bridge deck, etc.). One industry buys multiple applications; one application serves multiple industries. If you know your project type but not your industry classification, this is the section to start with.