Advantages Of Polyurethane Sandwich Panels

‌The core advantages of polyurethane sandwich panels include excellent thermal insulation, fire resistance, easy installation and high cost performance‌. Its unique material properties make it widely used in the construction field, especially in scenes with high energy saving and fire prevention requirements. ‌

‌Excellent thermal insulation performance‌

The thermal conductivity of polyurethane rigid foam is as low as 0.022W/(m\cdotpK)0.022 W/(m\cdotpK), which is significantly better than EPS (≤ 0.042W/(m\cdotpK)0.042 W/(m\cdotpK)) and other traditional materials. The thermal insulation effect of 35mm thick polyurethane foam is equivalent to that of a 1075mm thick brick wall.
‌High fire resistance‌

The combustion performance reaches B1 level, and it is self-extinguishing when away from the fire. There is no melting drop or toxic gas generated during combustion, and the safety is much higher than EPS and rock wool composite panels.
‌Easy installation and aesthetics‌

The board design is beautiful, seamless splicing is achieved through concealed nail connection, there are no exposed screws on the surface, the construction period is short, and the use of secondary steel structure can be reduced (saving about 19.5 yuan/㎡ cost).
‌Excellent comprehensive physical properties‌

Compressive strength ≥150kPa, temperature resistance up to 120℃, strong bending bearing capacity, can resist insect bites, and has moisture-proof, waterproof and corrosion-resistant properties.
‌Environmental protection and health advantages‌

The fluorine-free foaming process is adopted, which does not damage the ozone layer, is non-toxic and odorless, and is suitable for factories in the electronics, pharmaceutical and other industries with high cleanliness requirements.
‌Cost-effectiveness advantage‌

Although the unit price is relatively high (about 140 yuan/㎡), its energy-saving effect and reduced auxiliary structure cost make its comprehensive benefits better than EPS (50 yuan/㎡) and rock wool composite board (90 yuan/㎡).
Comparison extension
Compared with materials such as rock wool composite board and glass wool composite board, polyurethane sandwich board has more advantages in the balance between insulation and fire protection. Although rock wool materials have a higher flame retardant grade (Grade A), their fiber structure leads to reduced thermal insulation performance, making it difficult to meet the core needs of energy conservation.