Purlin Composite
Composite/FRP purlins box section
Composite/FRP box-section purlins for secondary frames, fences, warehouses, coastal works, and items…
Purlin Composite
Composite/FRP purlins and FRP section bars for fences, secondary frames, warehouses, coastal works, and environments requiring corrosion limitation; specifications are confirmed according to each requirement.
What is a purlin Composite/FRP?
Purlin Composite is the commercial name for bar-shaped components made from fiber-reinforced polymer materials, most commonly glass fiber-reinforced FRP. In practice, the name may include square box bars, rectangular box bars, C, I, H shapes, or L angles. Only bars that are calculated and arranged to support the roof should be called purlins according to their structural function; other forms may be frame bars, bracing bars, or secondary components.
Hưng Thịnh Phát accepts manufacturing and supplying Composite/FRP purlins box section According to the confirmed specifications. Customers should send drawings, dimensions, span supports, usage loads, and working environment for the technical department to check before providing a quote.price.
Why is FRP considered for corrosive environments?
FRP does not form rust like iron-containing metal materials and has a low specific gravity. However, its long-term performance also depends on the resin system, type of reinforcement, surface protective layer, UV exposure, temperature, and chemicals.contact material, load, and bonding quality. One should not infer that all Composite bars have the same properties just because their external shapes are similar.
| Application | Advantages to be evaluated | Information to be confirmed |
|---|---|---|
| Fences, railings, auxiliary frames | Lightweight, rust-free, easy to process according to drawings | Wind load, column spacing, connections, surface requirements |
| Fish rafts, aquaculture cage frames | Suitable for studying in humid and saltwater environments | Loads of wind and waves, impacts, flotation, fatigue, connections, and specialized design |
| Coastal works | Reduce the risk of rust for steel components in certain positions | Resin system, UV, temperature, salt sand, cutting details, and bar ends |
| Warehouses, factories with corrosive agents | Can reduce the need for metal protective paint | Chemical concentration, exposure time, temperature, and compatibility chart |
| Projects requiring materialsmild medicine | Convenient for transportation and handling | Cannot be directly converted to load-bearing capacity; deflection and stability must be checked |
Criteria for selecting Composite purlins
- Function: Roof purlins, fence frames, bracing bars, auxiliary frames, or parts of aquaculture systems.
- Section and specifications: Box shape, C, I, H, or L; dimensions, thickness, and length must follow the confirmed specification.
- Load and deflection: Must be calculated according to span, frequent loads, service loads, wind, and connection conditions.
- Environment: correctly identify the chemical, concentration, temperature, exposure time, saltwater, and UV to select the resin system.
- Electricity and fire: Only use insulation or flame-retardant criteria when there is a test report applicable to the correct product configuration.
- Processing and connection: Check hole diameter, edge distance, plate, washer, tightening torque, and the surface sealing plan for cuts.
Receive consultation and quotation based on drawings
Price of Composite purlins depends on cross-section, thickness, length, resin system, surface requirements, quantity, processing, and delivery location. See Guidelines for selecting Composite/FRP purlins according to application or send request for quotation attached with drawings for Hưng Thịnh Phát reference.