Dear all, while using the milling bath, some water leaked. (My package did not include the necessary fittings to seal off the whole and connect a tube, so I temporarily tried using duct tape).
when I saw the leak and removed the milling bath, I noticed some of this rust looking material on my T-slot table. Does anyone know what that is and how to get it off? It looks completely burned into the surface.
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Found the answer to my own question: apparently if water and carbon fiber dust sit together on aluminum for too long (hours), because the carbon fiber is a conductive material, it can cause galvanic corrosion of the aluminum. It is a harmless thin layer of a brown looking color on the aluminum.