The Characteristics of Polyurethane Board

The Characteristics of Polyurethane Board

1. Strong stability

The foaming technology of polyurethane PU board makes it have superior bonding performance. The solid combination of polyurethane rigid foam and carrier layer is the basic premise to ensure the stability of the outer insulation layer. Even if it is used under the most unfavorable local temperature and humidity conditions, and bears various internal and external loads such as wind force, self-weight and normal collision, the insulation layer will not be separated from the carrier layer, fall off and remain stable in a wet state.

2. Good fire and flame retardant properties

Polyurethane PU board is a kind of flame retardant and self-extinguishing material after adding flame retardant. If it is burned by fire, it can be carbonized. Especially after the first-level system fire protection treatment, it is sealed as a whole to form a non-combustible product. Polyurethane PU board rigid foam has low water absorption rate and good water vapor permeability resistance. The foam cells are independent and not connected to each other. The closed cell rate is more than 90%. The surface is denser and less permeable, which is a hydrophobic material.

3. It an withstand the harshest local climate and its changes

Regardless of high temperature or severe cold climate, the polyurethane board will not damage or deform the external wall insulation system. The temperature of the external surface of the external wall changes drastically (the temperature difference reaches 50 degrees), such as a sudden drop after a long period of exposure. Showers, or shading after exposure to the sun, will not cause damage to the surface of the exterior wall when a temperature difference similar to the above occurs. In this way, surface deformation caused by surface temperature changes is avoided to cause cracks on the surface. Polyurethane board reduces the strength and difficulty of the project, saves project cost and construction time, the on-site construction can be standardized, industrialized, easy to operate, and its construction efficiency is higher than other thermal insulation construction methods.

Polyurethane board is a material with a high strength ratio (ratio of material strength to volume density). As an insulation material, its performance is better than that of foamed polystyrene, rock brocade and other materials, and its ability to resist external forces is also strong. The real and effective polyurethane board has a stable porosity structure and is basically a closed hole, so it not only has excellent thermal insulation performance, but also has good freeze-thaw resistance and sound absorption.