Polyurethane foam is a thermosetting polymer polymer, which is an excellent insulation material. Its general walls, high bond strength base material, without any adhesives and anchors. Die casting process using field, rigid polyurethane foam to form a continuous and effective insulation, mechanical anchoring for permanent, temporary fixed, fixed wall or exterior wall pipe attachments, to ensure joint action with grass and insulation materials effectively blocking the thermal bridge. Scene mode poured polyurethane foam with a solid combination of primary wall, the basic premise is to ensure the stability of the outer insulation. Such systems can resist the influence of many factors, that is, under the most unfavorable local conditions of temperature and humidity, can withstand wind, the weight of a normal collision various internal and external forces affect insulation in humid conditions remain stable, and does not appear substrate separated off phenomenon.
Water tightness. Polyurethane foam has excellent waterproof, vapor barrier properties, the material does not contain water, low water absorption and can be a good blocking water and water vapor permeability, so that the wall to maintain a good and stable adiabatic conditions, is the other thermal insulation materials are difficult to achieve. On-site surface mold casting polyurethane foam insulation wall without seams, holes surrounding, around window and door openings, etc. tight, it has a good waterproof performance, avoid the rain into the interior of danger. Many engineering practice has proved that the existence of a gap-absorbent surface or surface layer, in the freezing cold and rain infiltration cases vulnerable to frost damage. Walls not condensation. In the internal wall insulation or internal condensation are harmful, when the new wall in the drying process, or in winter conditions, high temperature steam room to the outside due to the migration of rigid polyurethane foam barrier wall the impossible condensation. In the indoor humidity is low, and the interior wall moisture barrier in good condition when they can avoid the wall of water vapor generated by condensation and moisture migration. Can withstand the harshest of local climate and its changes. Whether high or cold, do not make the insulation system leads to irreversible damage or deformation. Dramatic changes in the exterior surface temperature (up to 50 ℃), for example, when a long time after exposure to sudden showers down, or after exposure to be shade, produced similar to the above temperature, on the exterior wall surface will not cause damage. EPS impact-resistant performance is better than other insulation materials. Polyurethane foam is a strength (material strength and bulk density ratio) higher material, as its performance is superior insulation material polystyrene foam, rock wool and other materials, is also strong resistance to external forces. And the scene mode poured polyurethane foam insulation system can withstand the impact of normal human and moving goods produced. In general when subjected to a collision, causing damage to the external insulation system does not. When the air conditioner or when it is placed on Jia'an maintenance facilities using conventional methods, the surface layer will not crack or perforation.
Flexible polyurethane foam is a large amount of material deformation, deformation of its ability to resist outside in force and temperature deformation, deformation under the effect of wet and dry, easy to crack occurs, effectively ensure the system's stability and durability. When the body structure is attached to produce normal deformation such as shrinkage, swelling occurs, the field of polyurethane foam insulation system of the mold pouring the flexible drill graded layers and the stress is released, and thus will not crack or disengaged. In the field of polyurethane foam insulation die casting construction project is mechanized operations, construction speed, high efficiency, is unmatched by other insulation jobs. Polyurethane construction of the building shape adaptable, especially adapted to the complex parts of the building structure nodes insulation. Can guarantee the construction site of a full range of complex insulation effect, but also to prevent damage to the insulation of water or water vapor layer. Meanwhile, the scene mode poured polyurethane foam insulation material surface flatness flatness not affect grassroots wall, but in the light, heat, atmospheric effects of aging prone, thus requiring surface recombination aging, improve the wear resistance and anti- impact material.
