Galvanic corrosion is happening to your boat right now. Stray current corrosion can destroy a bronze propeller in weeks. Understanding the physics is the only way to stay ahead of it.
The galvanic series explained — why aluminum, bronze, stainless, and lead all interact electrically in saltwater, and which metal always loses.
Zinc vs aluminum vs magnesium anodes, where each one goes on a sailboat, the 50% replacement rule, and what it means when anodes disappear too fast — or not at all.
Why stray current is far more dangerous than galvanic corrosion, how to test for it, and why shore power is the most common culprit in marina corrosion disasters.
The 40-year debate among marine electricians — what bonding actually does, why it helps in some scenarios and makes things worse in others, and the ABYC recommendation.