The Coldshield 4500 Series Thermal Traffic Door was developed to provide a premium traffic door for the discerning customer. Features include a rotational moulded polyethylene skin that is then high density foam filled and cured to provide exceptional thermal and noise insulation properties. Full surround seals prevent dust, insect and contaminant intrusion. All doors are standard with double glazed polycarbonate windows, recessed for protection and providing exceptional visibility for pedestrians. The panels have a lightly textured flat surface to ensure a smooth easy passage for trolleys.