phenolic foam air ducting panel is fireproofing (Class 1, BS476 part 6&7), sheet size: ... 4m*1.2m*20mm phenolic foam air ducting panel is new generation environmental insulation material, when it is burnt, it has no ... -resistance, insulated, water and moister resistant anticorrosion, anti-aging, sound insulation and energy saving, meanwhile the contractility is low and not ...