Polyurethane sandwich roof panel

Polyurethane sandwich roof panelDBC-402B ProductIntroduction DBC-402Bblendpolyolsisacompoundwhichconsistsofpolyetherpolyols,surfactants,catalysts,foamingagentandflameretardantinaspecialratio.Thefoamhasgoodthermalinsulationproperty,lightinweight,highcompressionstrengthandflameretardanceandotheradvantages.Itiswidelyusedtoproducesandwichplates,corrugatedplatesetc,whichappliestomakecoldstores,cabinets,portablesheltersandsoon. PhysicalProperty Appearance HydroxylvaluemgKOH/g Dynamicviscosity(25°C)mPa.S Density(20°C)g/ml Storagetemperature°C Storagestabilitymonth Lightyellowtransparentviscousliquid 320-400 250-350 1.10-1.16 10-25 6 RecommendedRatio Rawmaterials pbw DBC-402Bblendpolyols Isocyanate 100 100-105 TechnologyandReactivity((theexactvaluevariesdependingonprocessingconditions) items Manualmixing Hightemperaturemachine Rawmaterialtemperature°C Mouldingtemperature°C Creamtimes Geltimes Freedensitykg/m3 20-25 35-45 30-50 120-200 23-26 20-25 35-45 20-30 70-150 23-26 FoamPerformance Mouldingdensity Closed-cellrate Thermalconductivity(15°C) Compressionstrength(perpendiculartothedirectionofrising) Dimensionalstability 24h-20°C 24h100°C Flameretardantgrade GB6343 GB10799 GB3399 GB/T8813 GB/T8811 GB/T8624 ≥38kg/m3 ≥90% ≤22mW/(m.K) ≥140kPa ≤1% ≤1.5% LevelB2