Drum Insulator Environment Indoor For Container Type Drums For Container Capacity 55 gal Insulator Coverage Full Coverage IP Rating IP50 Exterior Material Silicone Impregnated Cloth Features Can be used with a Silicone Drum Heater Designed to Wrap Around a Drum Providing Insulation Reducing Drum Heat Loss Insulation Material Fiberglass Insulation Thickness 1 in Maximum Temperature 500 Degrees F Outside Diameter 22 1/4 in Overall Height 36.4 in