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FRP Anti Corrosion Purlin
1.Keywords
FRP Roof Purlins, Chemical-Resistant Structural Purlins, Non-Metallic Roof Supports, Fiberglass Building Purlins, Industrial Roofing Beams, Acid-Resistant Purlins, UV-Stable Roof Battens, Lightweight Structural Purlins, Composite Construction Purlins
2.Technical Specifications
1. Material & Construction
|
Parameter |
Specification |
|
Base Material |
Vinyl Ester Resin + E-Glass Fiber |
|
Reinforcement |
Unidirectional Roving (Axial Strength >400 MPa) |
|
Surface Finish |
UV-resistant Gel Coat (RAL Colors Available) |
|
Fire Rating |
Class B1 (GB 8624) / UL94 V-0 |
|
Thermal Conductivity |
0.3 W/m·K |
2. Standard Sizes
|
Profile |
Width (mm) |
Height (mm) |
Thickness (mm) |
Span Capacity (m) |
|
C-Type |
80-300 |
40-100 |
3-6 |
2-8 |
|
Z-Type |
100-400 |
50-120 |
4-8 |
3-10 |
|
Box-Type |
120-500 |
60-150 |
5-10 |
4-12 |
3. Mechanical Properties
|
Property |
Value |
vs Steel Purlins |
|
Tensile Strength |
350 MPa |
Comparable |
|
Flexural Strength |
300 MPa |
80% of Steel |
|
Peso |
1.8 g/cm³ |
1/4 Steel Weight |
|
Thermal Expansion |
6×10⁻⁶/°C |
1/2 Aluminum |
3.Key Advantages
1. Extreme Corrosion Resistance
Chemical Exposure Tests:
|
Chemical |
Exposure Time |
Degradation |
|
10% HCl |
5 years |
<0.1% weight loss |
|
50% H₂SO₄ |
3 years |
Surface gloss retained |
|
Salt Spray |
10,000 hours |
No blistering |
2. Structural Performance
Load Capacity:
|
Span (m) |
Uniform Load (kN/m²) |
|
4 |
1.5 |
|
6 |
0.8 |
|
8 |
0.5 |
Fatigue Life: >10⁷ cycles @ 30% ultimate load
3. Installation Benefits
1/4 the Weight of Steel:
6m Z-purlin: 12kg (FRP) vs 48kg (Steel)
Tool Compatibility:
Cut with wood saws, drill with standard bits
Joining Systems:
|
Method |
Strength |
|
Adhesive Bonding |
20 MPa shear |
|
Mechanical Fasteners |
15 kN per connection |
4.Industry Applications
A. Chemical Plant Roofing
Acid Storage Buildings:
|
Feature |
Benefit |
|
HF Resistance |
No corrosion in fluorine environments |
|
No Rust Staining |
Preserves roof membrane |
B. Marine Facilities
Coastal Warehouses:
Withstands salt spray at 120km/h winds
50-year lifespan in C5-M corrosion zones
C. Food Processing Plants
Washdown Areas:
Resists CIP cleaning chemicals (pH 2-12)
FDA-compliant resin options
D. Solar Farm Structures
PV Mounting Rails:
|
Advantage |
Value |
|
Non-Conductive |
Eliminates stray current |
|
Low Thermal Expansion |
±2mm/10m @ ΔT=50°C |
5.Customization Options
1. Enhanced Properties
Fire Retardant: LOI >28 (ASTM D2863)
Anti-Static: Surface resistivity 10⁶-10⁹ Ω/sq
High-Temp: Up to 150°C continuous (special resins)
2. Smart Features
Strain Gauges: Embedded fiber optic sensors
RFID Tags: For maintenance tracking
3. Accessories
|
Accessory |
Function |
|
End Caps |
Prevent water ingress |
|
Splice Plates |
Multi-span connections |
|
Insulation Pads |
Thermal break |
6.Quality Assurance
Testing Standards:
|
Test |
Standard |
|
Flexural |
ASTM D790 |
|
Impact |
ISO 179 |
Certifications:
ISO 9001
CE Marking (EN 13706)
7.Contact for
Wind/snow load calculations
CAD profiles (DWG/STEP)
Custom die tooling services
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Indirizzo
20 Xingyuan South Street, contea di Zaoqiang, città di Hengshui, provincia di Hebei, Cina
