Supply Jilin Province exterior wall insulation polyurethane spraying machine, excellent moisture and heat resistance and good water tightness
Urethane foam has excellent waterproof and vapor barrier properties, the material does not contain water, and the water absorption rate is very low, which can be well blocked The penetration of water and water vapor allows the wall to maintain a good and stable thermal insulation condition, which is currently difficult to achieve with other insulation materials.
The surface of the urethane foam insulation wall has no seams and is tight around holes, door and window openings, etc., making it have good waterproof performance and preventing rainwater from entering the interior and causing danger. The practice of many foreign projects has proved that there are gaps in the water-absorbing surface layer or surface layers, which are prone to frost damage when rainwater penetrates and is exposed to severe cold and freezing conditions.
No condensation in the wall
Condensation inside the wall or inside the insulation layer is harmful. During the drying process of the new wall, or under winter conditions, water with high indoor temperature will be harmful. When steam migrates to the outdoors, it is blocked by the rigid polyurethane foam, making it impossible for condensation to form inside the wall. When the indoor humidity is low and the indoor wall moisture insulation is in good condition, condensation caused by moisture migration of water vapor in the wall can be avoided.
Can withstand the harshest local climate and its changes
Whether it is high temperature or severe cold climate, it will not cause irreversible damage or deformation to the external insulation system, and drastic changes in the temperature of the outer surface of the exterior wall ( degree), for example, a sudden rain shower after a long period of exposure, or shading after exposure, resulting in temperature differences similar to the above, will not cause damage to the surface of the exterior wall. This avoids surface deformation caused by changes in surface temperature and cracks on the surface.
, impact resistance is better than other thermal insulation materials
Urethane foam is a material with a high strength ratio (ratio of material strength and volume density). As an insulation material, its performance is better than that of foamed polystyrene. , rock brocade and other materials also have strong ability to resist external forces.
The external wall insulation system of urethane foam composite rubber powder and polystyrene particles can withstand normal collisions caused by the human body and moving objects. It will not cause damage to the external insulation system when subjected to ordinary collisions. The surface will not crack or perforate when an air conditioner is installed on it or maintenance equipment is placed using conventional methods.
. Strong adaptability to the deformation of the main structure and good crack resistance
Supply Jilin Province exterior wall insulation polyurethane spraying machine