also a percentage of the molds that IPD were also thrown as they degraded to a state that they were not useable. Any molds that are designed in a way to have 2 halves and placed in a press are machine steel and not stainless steel as as stainless would fail very quickly under the press loads. When molds are stored they need a light coat of machine oil to protect them from rust as well as to maintain a smooth motion as they have tight tolerances to maintain accuracy.
