We have applied fluorine technology to provide environmentally friendly cover gas for magnesium alloy production. An environmentally friendly product with low GWP, etc.

We have applied fluorine technology to provide a non-flammable cover gas ZEM-SCREEN® (HFO-1234ze(E)) for prevention of ignition of molten magnesium that is environmentally friendly. ZEM SCREEN® has won the merit award in the 12th Ozone Layer Protection and Global Warming Prevention Grand Prize sponsored by the Nikkan Kogyo Shimbun.

Grades 99% or more
Characteristics Colorless, transparent liquefied gas having a slight ether odor
Packaging 47L cylinders
Applications Prevention of ignition of molten magnesium

Features of Cover Gas

Since magnesium alloy is lighter than iron and aluminum, the market is expected to grow in terms of energy conservation and environmental compatibility. On the other hand, magnesium is an active metal that reacts explosively with oxygen in the air in its molten state. SF6, which has a high global warming potential (GWP), is used to prevent combustion, and the development of a low-GWP gas is in demand.
ZEM-SCREEN® (HFO-1234ze(E)), a cover gas developed by our company, has an low GWP and performance comparable to SF6, which will greatly contribute to the reduction of CO2 emissions.

  • Low GWP
  • SF6-like performance


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Applied Chemicals Related Research and Development


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