PHENOLIC DUCT:
Phenolic pre insulated duct comprise a 65-70kg/m³ nominal density CFC/HCFC  free rigid phenolic insulation core with zero Ozone Depletion Potential(ODP). The phenolic foam pre insulated ducting panel is a high strength panel, in which phenolic foam is te core material,with aluminium foil renforced on both sides. It is a non-combustible material, which has no smoke, if it catches fire. It has a bending strength of more than 1Mpa and has a thermal conductivity index of 0.022 W/mk.