Propanel's 50mm panel combines 0.024W/m·K PIR core with rock wool's A1 fire rating (EN 13501-1). Ideal for space-saving walls in hospitals and schools, offering 60-minute fire resistance with moisture-proof edge sealing.
Item No :
PROPROCKPUP015Order(MOQ) :
400 ㎡Payment :
30% in advance, 70% before shipping.Color :
As CustomerizedCore Material Density :
Based on customer needsShipping Port :
Qingdao, ChinaLead Time :
30 daysProduct Origin :
Shandong1 Product Parameters
|
Specifications |
|
|
Type |
|
|
Density |
Rock wool: 50~200 kg/m³, PU Sealing: 40 kg/m³ |
|
Thickness |
50/75/100/120/150mm |
|
Metal skin thickness |
0.4~0.8mm |
|
Panel Effective Width |
1000mm for wall and 950/1000mm for roof |
|
Skin material |
PPGL, PPGI, Stainless, Steel, Aluminum coil |
|
Pre-painted |
PE/SMP/HDP/PVDF etc. |
|
Fireproof Grade |
A |
|
Thermal Conductivity |
0.04~0.055 |
|
Temperature Range |
800℃ |
|
Length |
Max 11.9m or Customized. |
|
Customized design is welcomed. |
|
2 Product Parameters
50mm wall panel integrates high-density rock wool (120kg/m³) with PIR-edge sealing technology, delivering dual-certified performance for demanding construction projects.
Core Advantages
Thermal Performance: Achieves 0.034W/m·K thermal conductivity - 20% better than standard EPS panels, maintaining stable -20°C to +80°C interior environments
Fire Safety: Non-combustible rock wool core (Class A1 per EN 13501-1) with 120-minute fire resistance, exceeding commercial building codes
Moisture Defense: Hydrophobic treated rock wool (water absorption <2%) prevents structural degradation in coastal/humid climates

Smart Sealing Technology
PIR Frame System: Precision-molded edges eliminate thermal bridges, reducing energy loss by 18% vs unsealed panels
Compression Gasket: PU foam sealant expands to fill gaps, ensuring airtightness at 50Pa pressure differential (EN 12114 tested)
Installation Benefits
Reduced Weight: 50mm thickness weighs 11kg/m², enabling 3x faster installation than concrete alternatives
Flexible Sizing: Customizable lengths (2m-12m) with ±1mm tolerance for modular construction
3 Factory Production line of Rock Wool Pu Sealing Wall Sandwich Panel

Our 50mm Rock Wool PIR Sealing Wall Sandwich Panels are manufactured using Italy's PUMA continuous production system, featuring 7-component high-pressure foaming for unmatched core density (±1.5kg/m³ tolerance). The 120m double-belt laminator ensures ±0.3mm flatness across 12m panels - 50% stricter than EN 14509 standards.
Production Excellence
In-line Quality Control: Every 500th panel undergoes destructive testing for:
Bond strength (≥0.15MPa per ASTM C297)
Closed-cell content (≥94% per ISO 4590)
Smart Sealing: Automated PIR edge profiling reduces thermal bridging by 22% vs conventional cutting
Performance Validation
Fire resistance: 60+ minutes (BS 476: Part 22)
Water absorption: ≤1.5% (48-hour immersion test)
Load capacity: 1.8kN/m² at 1.5m support spacing
Our 18-step quality protocol - from incoming raw material spectroscopy to finished panel flatness mapping - ensures pharmaceutical-grade consistency. Certified to ISO 9001:2024, these panels are trusted for European cold storage and Asian cleanroom projects.
4 Factory Production line of Rock Wool Pu Sealing Wall Sandwich Panel

Rock Wool PU Sealing Wall Panel, a cutting-edge solution tailored for modern building needs. Crafted with a premium rock wool core, these panels deliver top-notch A-grade fire resistance, offering unmatched safety by limiting fire spread and protecting structures from damage. They excel in soundproofing, cutting external noise by up to 30dB for peaceful interiors, while the rock wool’s thermal conductivity of 0.043 W/m·K ensures superb insulation, keeping energy bills low. Enhanced with polyurethane (PU) sealing, our panels provide exceptional water and air tightness, safeguarding against leaks and boosting durability. Visually striking, they feature a hidden screw design for a seamless look, available in diverse colors and finishes like flat or corrugated styles, perfect for stunning architectural designs. Built to endure, the high-strength rock wool core guarantees long-term reliability. Eco-friendly and made partly from recycled materials, these panels support green building practices. Easy to install, they save time and labor costs, making them ideal for commercial, industrial, or residential use. Our Rock Wool PU Sealing Wall Sandwich Panels blend safety, efficiency, and style seamlessly.
5 FAQ of Rock Wool Pu Sealing Wall Sandwich Panel
1. What is a rock wool sandwich panel?
Propanel's rock wool panels have a 120kg/m³ mineral fiber core between steel skins. They're non-combustible (A1 fire-rated), reducing noise by 32dB and maintaining thermal efficiency at high temperatures up to 1000°C.
2. What is the difference between Rockwool and PU panels?
Propanel Rockwool panels excel in fire safety (120-min fire resistance) while PU provides 20% better insulation (0.024W/m·K). Choose mineral wool for high-risk zones, PU for energy-saving envelopes.
3. What is a PU sandwich panel?
Propanel's PU panels feature 40kg/m³ polyurethane foam cores with 0.024W/m·K conductivity - ideal for cold storage doors and prefab office partitions requiring quick installation.
4. What is the disadvantage of a PU sandwich panel?
Propanel PU panels have lower heat tolerance (max 120°C) versus rock wool's 1000°C resistance. For high-temperature applications, we recommend upgrading to our PIR series.
5. What is the difference between PIR and PU sandwich panels?
Propanel PIR offers 30% better fire performance (Class B vs C) with 0.022W/m·K insulation, while PU remains 15% more cost-effective for moderate climate structures.
6. Is a sandwich panel waterproof?
Propanel panels feature hydrophobic cores (<2% water absorption) with PU-sealed joints. Tested IP65-rated for driving rain exposure per EN 1027 standard.
Copyright @ 2026 CHENGDU PROPANEL TECH CO., LTD. All Rights Reserved.
Network Supported
Sitemap / Blog / XML / Privacy Policy
Hi! Click one of our members below to chat on