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As the world's best thermal insulation material, polyurethane is widely used in various fields for its excellent performance such as environmental protection and light weight, and in recent years, it has been used more and more in the cold chain industry.
Polyurethane composite panels are also called PU sandwich panels.
The composite panel with polyurethane as the core material is composed of the upper and lower layers of color steel plate and the intermediate foamed polyurethane, which adopts the world's most advanced six-component online automatic operation mixing and pouring technology, which can complete the proportioning and mixing process of the social batching center or factory online at one time, and can be adjusted at will according to the temperature online, so as to produce a unique high-strength, energy-saving, green and environmentally friendly building board.
Polyurethane sandwich panels are widely used in large industrial plants, cold storage, garages, mobile homes, exhibition halls, exhibition halls, gymnasiums, shopping centers, airports, power plants, villas, hospitals, strata and high-rise office buildings and other fields.
It is generally used for the roof outer layer board of the building, which has good thermal insulation, heat insulation and sound insulation effects, and polyurethane does not support combustion, in line with fire safety. The joint action of the upper and lower plates and polyurethane has high strength and rigidity, and the lower plate is smooth and flat, with clear lines, which increases the interior aesthetics and flatness. It is easy to install, short in construction period and beautiful, and is a new type of building material.
The sandwich panel has light weight, beautiful and good anti-corrosion performance, and can be directly processed, it provides a new type of raw material for the construction industry, shipbuilding industry, vehicle manufacturing industry, furniture industry, electrical industry, etc., and has played a good effect of replacing wood with steel, efficient construction, energy saving, and pollution prevention.
1. Advantages of roof panels
The polyurethane roofing panels are connected by concealed nails, and the board surface is tightly overlapped. The unique waterproof groove design effectively prevents rainwater from penetrating and avoids the phenomenon of cold bridges. The peak height of 40mm greatly improves the bearing capacity of the roof panel. While ensuring the thermal insulation effect of the building, it can effectively reduce the construction cost of the customer, and the roof slope can reach as low as 3%.
2. Advantages of polyurethane composite board wall panels
Concealed nail connection, no exposed screws on the surface, beautiful and smooth building wall. Extremely high flexural capacity, superior mechanical properties of wall mechanics, reducing dependence on auxiliary steel structures. Excellent thermal insulation performance, reducing the cost of indoor air conditioning in the building. A variety of appearance effects, beautiful wall.
| Properties of panels | Polyurethane panel | Polyisocyanurate panel | Mineral wool panel | EPS Foam |
| Core Density | 40kg | 40kg | 80-120kg | 8-20kg |
| Insulation core Thermal value | 0.023(W/mk) | 0.023(W/mk) | 0.045(W/mk) | |
| Fire Resistance grade (EN13501-1) | C-S2,D0,15min | B-S2,D0,45min | A2-S1,D0,100-120min | |
| Sound absorption | 25dB | 25dB | 34dB | 22dB |
| PUR/PIR Sandwich Panel Technology Data | |
| Density | 40-43kg/m3 |
| Thermal conductivity | 0.019-0.023W/M.K |
| Moisture permeability coefficient | ≤3.34Ng/Pa/m.s |
| Water absorption | ≤0.5g/100cm2 |
| Enclosed rate | ≥97% |
| The compression strength | ≥220KPa |
| The bending strength | ≥2450KN/m2 |
| Oxygen index | ≥28 |
| Fire proof | B1 |
| Dimensional stability | ≤1% |
| Application temperature | -50ºC-150ºC |
| Exterior Steel thickness | 0.35-0.8mm |
| Interior steel thickness | 0.35-0.8mm |
| Core material thickness | 40/50/60/75/80/100/120/150/200mm |
| Length | Less than 11.8m |
| Effective width | Wall panel:400-1120mm;Roof panel:1000mm |
| Grace finish | Embossment,small wave,big rib,flat finish,Lowribs |
| USAGE | Roof and Wall |
| Advantage | Heat Insulation, light weight, quick installation,waterproof, fireproof, soundproof, energy-saving,environmental friendly, |
Company information:
Qingdao Wise link International, which has been with the building industry for more than 15 years, is a top building material manufacturer and trading supplier. We focus on developing the international market and international business.
Qingdao wise link international supplies the building materials, such as Polyurethane sandwich panels, EPS/Rockwool sandwich panels, PPGI steel coils, steel structure buildings, prefab houses, Modular houses, Cleanroom sandwich panels, cleanroom doors, cleanroom windows, and lab facilities, we supply one-stop service from designing, manufacturing, supplying, and installation for the overseas project.
We export building materials to Southeast Asia, Africa, America, Europe, and Middle Eastern countries, because of our trustable quality and service, all clients give a good reputation, and we will keep the highest level of service for all clients.
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You may also want to know :
1. What are sandwich panels used for?
Sandwich panels are a modular building material designed to cover buildings and structures. These panels consist of two layers that form the outer structure and ensure form, weather resistance, and rigidity. They contain a core that provides thermal and acoustic insulation properties.
2. What is the 50mm EPS sandwich panel weight?
EPS panel is also called a Polystrofoam panel. The weight of the core EPS panel is lightweight, with both steel surfaces, the weight of the EPS sandwich panel is becoming more heavyweight, For example, if both sheets of steel are 0.5mm thick galvanized steel sheet, and the core is 20kg density 50mm EPS panel, the weight at around 8.8kg per sqm.
3. What is the EPS sandwich panel price?
USD9-20/Square Meter. Thickness 30-100 mm. Material EPS. Usage/Application Roofing. Size as per requirement.
4. What is a sandwich panel roof?
A sandwich panel is a product used to clad the walls and roofs of buildings. Each panel comprises a core of Thermo insulating material, and skin on both sides with sheet metal. Sandwich panels are not structural materials but curtain materials.
