Manganese phosphate conductivity: Important unanswered question

Summary for manganese phosphate conductivity Discussion

Manganese-phosphate coatings and electrical conductivity are the focus of this thread, where Ray Mills asks whether manganese phosphate on case-hardened steel acts as an insulator and whether it would worsen or reduce bearing damage from electrical discharge at an interface. He says he is not seeking grounding advice, only the coating’s effect. The only reply in the excerpt is from Ron Oleka, who says he does not have an answer but is also interested in manganese phosphate coatings. A later, separate question from Angelo Mapagdalita asks whether phosphating affects the conductivity of galvannealed material. Based on the excerpt, no technical conclusion is provided, so the thread mainly records the question rather than a resolved answer.