A substance or agent that opposes or prevents flux, the flow or continuous change of something, particularly in metallurgy or physics.
From anti- + flux (flow). Technical term used in metallurgy and physics to describe substances that oppose or stabilize fluidity.
In welding and metalwork, antiflux coatings prevent molten metals from oxidizing too much—it's like putting a protective barrier around the liquid metal so it flows smoothly without getting contaminated.
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