Exterior Insulated Wall
Sinopan Concealed Fastener Wall Sandwich Panel: Durable & Insulated Building Enclosure
The Sinopan Concealed Fastener Wall Sandwich Panel is a premium, energy-efficient cladding solution engineered for the vertical envelopes of industrial, commercial, and institutional buildings. Featuring a sleek, flat profile with a concealed fastener system, this panel provides superior thermal insulation, exceptional weather tightness, and a clean, modern aesthetic for factories, warehouses, distribution centers, and office facilities.
We offer the same comprehensive selection of high-performance core insulation materials as our roof panels—including Polyurethane (PUR), Polyisocyanurate (PIR), Rock Wool, Rock Wool with Polyurethane Edge Seal, Glass Wool, and Glass Wool with Polyurethane Edge Seal. This allows for perfect specification to meet project-specific requirements for fire resistance (including up to A1 non-combustible ratings with mineral wool cores), thermal efficiency (U-value), and acoustic control. Our technical team is ready to assist you in selecting the optimal core material and panel configuration for your wall system.
Complete Technical Specifications
| Parameter Category | Specification |
|---|---|
| Panel Profile | Flat / Water Ripple / Square wave |
| Fixation System | Concealed Fastener |
| Standard Core Materials | Rock Wool, Polyurethane (PUR), Polyisocyanurate (PIR) |
| Rock Wool Thickness | 50mm, 75mm, 100mm, 120mm, 150mm, 200mm |
| PUR / PIR Thickness | 50mm, 75mm, 100mm, 150mm |
| Metal Facings | Prepainted Galvanized Steel (other metals available upon request) |
| Steel Thickness | 0.4mm - 0.8mm |
| Galvanization | AZ50, AZ100, AZ150, AZ180 (g/㎡) |
| Coatings |
PE, SMP, HDP, PVDF |
| Fire Reaction (EN13501) | Rock Wool: A1 / PIR: B-s1,d0 / PUR: B-s2,d0 |
| Typical Applications |
Industrial Exterior Wall, Warehouses, Commercial Buildings, Agricultural Facilities |



Note: Other thicknesses and custom configurations are available for large-volume projects. Please inquire for special requirements.
Key Features & Benefits
1. Concealed Fastener System: Creates a smooth, uninterrupted surface with enhanced weather resistance and a professional architectural appearance.
2. Excellent Thermal Performance: Significant energy savings and improved interior comfort provided by a variety of high-R-value insulation cores.
3. Robust & Durable: Strong composite structure ensures long-term performance and durability against the elements.
4. Fire Safety Options: Choose from combustible (PUR/PIR) or non-combustible (Rock Wool/Glass Wool) cores to meet local building code and safety standards.
5. Acoustic Insulation: Effectively reduces external noise transmission for a more controlled interior environment.
6. Quick & Efficient Installation: The engineered tongue-and-groove joint system allows for fast, secure panel installation, reducing labor time and costs.
7. Versatile Applications: Ideal for new construction and retrofit projects on external walls, liner systems, and interior partitions.
8. Ideal for: External wall cladding for manufacturing plants, logistics warehouses, sports complexes, agricultural buildings, and clean rooms.
Table 1: Metal Facing & Finish Options
| Category | Specific Options | Key Notes |
| Material & Thickness | Prepainted Steel | Thickness range: 0.4mm - 0.8mm |
| Stainless Steel | Recommended thickness ≤ 0.5mm for optimal formability | |
| Aluminum | Maximum available thickness: 1.0mm | |
| Surface Patterns | Flat, Water Ripple, Square Wave | Applicable only to steel; corresponding steel thickness: 0.4mm - 0.8mm; provides different visual effects |
| Corrosion Protection (Steel) | Galvanization | Available specifications: Standard AZ50 (50g/m²), high-performance AZ100, AZ150, AZ180 |
| Coatings | Optional types: PE, SMP, HDP, premium PVDF; PVDF offers the best color retention and weather resistance |
Table 2: Insulation Core Selection Guide
| Core Priority | Recommended Core | Core Advantages | Applicable Scenarios |
| Maximum Fire Safety & Acoustics | Rock Wool | Complies with EN13501 standard, fire rating A1 (non-combustible); also provides excellent sound absorption | Schools, hospitals, high-occupancy buildings |
| Best Thermal Efficiency & Lightweight | Polyisocyanurate (PIR) / Polyurethane (PUR) | Highest R-value per thickness; PIR has better fire performance (Class B-s1,d0 / B1) and thermal stability than PUR (Class B-s2,d0 / B2) | Buildings in high-temperature areas |
Need Guidance?
Our technical experts can help you determine the optimal core material and thickness based on your local climate, building codes, and performance requirements. Contact us for a professional consultation.
Request a Quote or Technical Advice.
Choosing the right insulated panel configuration is key to your project's success. Contact our team today to get detailed technical data sheets, load span tables, and a competitive quote tailored to your specifications. We are here to support you from selection to installation.
