Glass Fiber Reinforced Polyurethane Solar Mounting & Frame
Advanced GRPU (Glass Fiber Reinforced Polyurethane) composite materials offering superior corrosion resistance, excellent insulation, and lightweight design. Engineered for utility-scale and distributed solar power projects with exceptional performance and longevity.
Revolutionary Solar Mounting Solutions
Our Glass Fiber Reinforced Polyurethane (GRPU) solar mounting structures and frames represent the next generation in solar power infrastructure. Utilizing advanced composite materials, we deliver superior performance while significantly reducing environmental impact and operational costs.
- GRPU composite material with exceptional durability
- Superior corrosion resistance for harsh environments
- Excellent electrical insulation properties
- Lightweight design for easier installation and transport
- Low thermal conductivity for optimal panel performance
- 25+ years of proven performance history
GRPU vs Aluminum Frame Comparison
Comprehensive comparison showing the superior performance of Glass Fiber Reinforced Polyurethane (GRPU) over traditional aluminum frames across multiple performance metrics.
| Performance Metric | Aluminum Frame (AI) | GRPU Frame | GRPU Advantage |
|---|---|---|---|
| Corrosion Resistance | ✗ Not Resistant | ✓ Resistant | First choice for corrosive environments: offshore PV, coastal areas, wastewater treatment plants, aquaculture, and salt-alkali land. |
| Weather Resistance | ✓ Resistant | ✓ Resistant | 25 years of application history with proven durability. |
| Linear Expansion Coefficient (°C⁻¹) | 23.5×10⁻⁶ | 6.0×10⁻⁶ ~ 10.0×10⁻⁶ | Much closer to glass expansion rate; minimal deformation at low temperatures. |
| Carbon Emissions (tCO₂e) | 24.2 | 3.5 | Supports low-carbon/ultra-low carbon component certification; reduces carbon-related taxes (85% reduction). |
| Insulation Performance (Ω·cm) | Conductive | Insulated (≥1×10¹⁴) | Eliminates need for component protective grounding; excellent PID (Potential Induced Degradation) resistance. |
| Specific Gravity (g/cm³) | 2.7 | 2.1 | Enables lighter module assembly and reduces installation costs. |
| Cost | High | Low | Significantly reduces component frame costs. |
| Color Options | Single (Silver/Black) | Multi-color | Meets aesthetic and coordination needs while reducing cost/increasing efficiency. |
| Thermal Conductivity [W/(m·K)] | 201 (High) | 0.34 (Low) | Low conductivity keeps modules at optimal temperature; improves power generation efficiency. |
| Flexural Strength (Mpa) | 170-230 | >850 | Effectively prevents permanent deformation of components. |
| Tensile Strength (Mpa) | 200-300 | >850 | Effectively prevents permanent deformation of components. |
Aging Performance & Mechanical Property Retention
Mechanical property retention rates after accelerated aging tests (DH2000, TC400, TC200+HF10, UV Exposure).
| Test Condition | GRPU Frame – Bending Strength Retention | GRPU Frame – Tensile Strength Retention |
|---|---|---|
| DH2000 (Damp Heat) | 89.63% | 91.16% |
| TC400 (Thermal Cycle) | 90.42% | 94.74% |
| TC200+HF10 (Thermal Cycle + Humidity Freeze) | 93.73% | 92.95% |
| UV Exposure 1200h | 87.10% | 88.84% |
| UV/300Kwh | 88.89% | 93.26% |
Key Features & Benefits
Advanced GRPU Material
Glass Fiber Reinforced Polyurethane with exceptional strength-to-weight ratio and enhanced durability.
Corrosion Resistant
Excellent resistance to salt spray, humidity, and harsh environments – ideal for coastal and offshore applications.
Electrical Insulation
Non-conductive material eliminates need for protective grounding and provides excellent PID resistance.
Customizable Appearance
Available in various colors including white, dark blue, and custom finishes to match project requirements.
Lightweight Design
Significantly lighter than aluminum (2.1 vs 2.7 g/cm³), reducing installation and transport costs.
Low Carbon Emissions
Sustainable materials with 85% lower carbon footprint compared to traditional aluminum (3.5 vs 24.2 tCO₂e).
Low Thermal Conductivity
Thermal conductivity of only 0.34 W/(m·K) keeps panels at optimal temperature, improving power generation efficiency.
High Mechanical Strength
Tensile and flexural strength >850 Mpa, effectively preventing permanent deformation under load.
Technical Specifications
GRPU Frame Specifications
Application Specifications
Frame Dimension Selection
Compatibility chart showing which GRPU frame configurations match different solar panel module sizes and types. Different module sizes match corresponding frames for optimal performance.
| Panel Type | Dimensions (mm) | 30-Cell Single Glass | 30-Cell Double Glass | 35-Cell Single Glass | 35-Cell Double Glass | 33-Cell Double Glass |
|---|---|---|---|---|---|---|
| 166-120 | 1755 × 1038 | ✓ | ✓ | ✓ | ✓ | ✓ |
| 166-144 | 2094 × 1038 | ✓ | ✓ | ✓ | ✓ | ✓ |
| 166-156 | 2263 × 1038 | ✓ | ✓ | ✓ | ✓ | ✓ |
| 182-108 | 1722 × 1134 | ✓ | ✓ | ✓ | ✓ | ✓ |
| 182-144 | 2278 × 1134 | ✓ | ✓ | ✓ | ✓ | ✓ |
| 182-156 | 2465 × 1134 | ✓ | ✓ | ✓ | ✓ | ✓ |
| 210-110 | 2384 × 1096 | ✓ | ✓ | ✓ | ✓ | ✓ |
| 210-120 | 2172 × 1303 | ✗ | ✗ | ✓ | ✓ | ✓ |
| 210-132 | 2384 × 1303 | ✗ | ✗ | ✓ | ✓ | ✓ |
| 210R-96 | 1762 × 1134 | ✓ | ✓ | ✓ | ✓ | ✓ |
| 210R-132 | 2382 × 1134 | ✓ | ✓ | ✓ | ✓ | ✓ |
Legend: ✓ = Compatible | ✗ = Not Compatible | Different module sizes match corresponding frames
Ideal Applications
Our GRPU solar mounting structures are designed for a wide range of solar power applications, especially in harsh environments.
Utility-Scale Projects
Large ground-mounted solar farms for commercial and utility-scale power generation.
Distributed Rooftop Systems
Commercial and industrial rooftop solar installations with corrosion-resistant requirements.
Coastal & Marine
Corrosion-resistant design ideal for installations in coastal, offshore, and salt-rich environments.
Project Success Stories
Explore our successful solar power installations using GRPU mounting structures and frames across various applications and locations.
Shaoxing Rooftop Solar Project
Shanghai Pudong Rooftop Solar
Integrated Base Distributed Solar
Jiangsu Rooftop Solar Project
Factory Rooftop Solar Project
Distributed Rooftop Solar Station
Ground Mount Solar Project
Rooftop Solar Project
Ready to Upgrade Your Solar Infrastructure?
Contact our team to learn how our GRPU solar mounting structures and frames can enhance your next solar power project with superior corrosion resistance, excellent insulation, and cost-effective performance.