When evaporated into a suitable carrier gas, Novec 612 fluid is an effective cover gas agent for the protection of molten magnesium. Typical processes where Novec 612 fluid provides excellent protection include various types of melting furnaces and casting operations, including:
Open casting of ingots, direct chill casting, sand casting or investment casting
High pressure die casting with hot or cold chamber melting furnaces
Preparation of alloys from pure magnesium or other alloys
Remelting of scrap from casting processes
3M™ Novec™ 612 fluid has been demonstrated to provide excellent protection for molten magnesium at operating costs comparable to SF6. When used to replace SF6 in casting applications, greenhouse gas emissions can be reduced by more than 99%.