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Cold storage exterior wall polyurethane insulation board roof insulation polyurethane board polyuret
Heat Insulation Materials | Other Heat Insulation Materials
USD 5.23 - 6.00 / Pieces
100
10000pcs/day
Tianjin port
Yes
Product Description:
1. Hard polyurethane has low thermal conductivity and good thermal performance. When the density of rigid polyurethane is 35 ~ 40kg/m3, the thermal conductivity is only 0.018~0.024W/ (m•k), about half of EPS, is the lowest thermal conductivity of all thermal insulation materials. 2, hard polyurethane has moisture-proof, waterproof performance. Hard polyurethane has a closed porosity of more than 90%, which belongs to hydrophobic materials. It will not increase thermal conductivity due to moisture absorption, and the wall will not seep water. 3, hard polyurethane fire, flame retardant, high temperature resistance. Polyurethane is a refractory self-flameout material with the addition of flame retardants. Its softening point can reach more than 250 degrees Celsius, and decomposition occurs only at higher temperatures. In addition, when polyurethane burns, carbon deposits are formed on the surface of its foam, which helps isolate the underlying foam. Can effectively prevent the spread of flame. Moreover, polyurethane does not produce harmful gases at high temperatures. 4. Due to the excellent thermal insulation performance of polyurethane sheet, the thickness of the outer protective structure of the building can be reduced and the indoor use area can be increased under the same thermal insulation requirements. 5, strong deformation resistance, not easy to crack, finish stable and safe. 6, polyurethane material porosity structure is stable, basically closed cell structure, not only good thermal insulation performance, but also freeze-thaw resistance, sound absorption. The average life of rigid foam polyurethane insulation structure can reach more than 30 years under the condition of normal use and maintenance. It can be achieved in the life of the structure under normal service conditions, dry, wet or electrochemical corrosion, as well as due to insects, fungi or algae growth or damage by rodents and other external causes, will not be damaged. 7, comprehensive cost-effective. Although the unit price of rigid polyurethane foam is higher than that of other traditional insulation materials, the increased cost will be offset by a significant reduction in heating and cooling costs.
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