Protecting mag bases around welding spatter

Anyone got a sleeve or shield that fits a Noga mag base and survives MIG spatter without killing accuracy? I bounce between the lathe and the fab bench, and my indicator and arms are getting peppered even with anti-spatter; thinking silicone baking mat or a thin leather wrap, but I still need rigidity and repeat zero within a thou.

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I quit cooking my Noga by clamping a 0.010–0.015 in stainless ‘hard hat’ to the post that overhangs the joints but doesn’t touch the base; spatter bounces off and my repeat zero stayed within 0.0005… If you want off‑the‑shelf, slip silicone‑coated fiberglass sleeving over the arms and leave the sole bare so the magnet holds: McMaster-Carr Want a quick sketch of the clip?

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