What is polyurethane insulation?

polyurethane insulation is a synthetic material with a high degree of resistance to heat transfer. It is marked as a type of insulation with closed cells, because its cell pockets are inflated with non-perofluorocarbon gas, which gives the material a higher density and more rigid structure than soft types of insulating materials with open cells. In general, the advantages of using polyurethane insulation compared to other materials include reduced infiltration of external pollutants and allergens, as well as resistant water vapor and mold and mold formation. There are three basic types of polyurethane insulation: formed enlarged polystyrene foam (MEPS), extruded enlarged polystyrene (XEP) and liquid foam. This is because the material contains beads that hold polystyrene, thermoplastic and liquid hydrocarbon called the Pentan. Combined with a chemical blowing agent and undercoat if warmed up, the beads are expanding. The material is then injected into the mold and warms up for the second time. Depending on the type ofThe resulting blocks and molds used will have different degrees of density.

XEPS is very similar to EP, but is more expensive because it is subject to a slightly different process. Place of heating and forming are polystyrene balls placed in the extruder, where they are mixed with chemical catalysts to melt them. When the blowing agent is introduced, the mixture releases gas and thick foaming liquid. This liquid is then brought through the matrix, from which it leaves and constantly expands to maximum capacity. After cooling, the material is then reduced to the specification.

both EP and XEPS types of polyurethane insulation can be laminated in various tiles to provide additional radiant value, as well as other moisture and flame resistance. The type of face used, which moves from Kraft paper to a cumbersome aluminum foil and vinyl, depends on its application. In addition, while these types of rigid foamNew insulation are commonly used in construction, they are also used to trim picnic coolers, refrigerators, freezers and chilled trucks.

Liquid foam polyurethane insulation usually has a lower density than formed or extruded insulation. However, its coverage capacity is a clear advantage. Once this material is inserted into the open space, it quickly expands and spreads, allowing it to penetrate the smallest cracks and slots. Insulation of polyurethane foam also has exceptional properties of moisture repeel in addition to being a highly retarded burning.