... 110Heat Conductivity0.21w/mk Vicat softening temperature131.5°c Linear expansion coefficient0.15mm/mkPressurePN1.25 to PN2.5Temprature ... corrossionEnvironmentfriendlyHealthharmless,non-toxicServiceable lifemore than 50 yearsCertificationGB/T18745.2-2002 ISO 9001:2000AdvantagePortable,to be transported and ... is up to 70°C , the maximum transient temperature is up to 95°C 2. Heat Preservation: low ...