Electric rubber molds primarily face the issue of heat radiation from the mold surface during operation. Although many rubber molds come with thermal insulation installed inside the mold cover, when multiple molds are installed in the same area, the heat radiating from each mold surface (70-120 degrees Celsius) combines to create accumulated heat in the workspace. This causes room or building temperature to rise above normal levels (some areas exceed 35 degrees Celsius), exposing workers to heat levels beyond legal limits, resulting in fatigue, increased susceptibility to illness, and reduced work efficiency. This problem can be solved with removable thermal insulation/energy-saving insulation ZAVE® with the following features: