Insulation method of mold

Many molds, especially engineering thermoplastics, running at a relatively high temperature, such as 80 degrees Celsius or 176 degrees Fahrenheit. If the mold is not insulation, drain into the air and heat on injection molding machines can easily and shoot as many losses of jar.
So you want to mold airframe insulation, if possible, the mold's surface insulation heat. If you consider using hot runner mold, tried to reduce the runner and cooling heat exchange between the injection molded parts. Such methods can reduce energy loss and preheating time.