Launch Tech - Galvanic Corrosion

Galvanic corrosion, sometimes mistakenly called electrolysis, is the result of the reaction between at least two dissimilar metals in electrical contact with one another, in the presence of an electrolyte. The manifestation of this is a white powdery corrosion that forms on the surface of an aluminum part where it contacts a steel part. This generally bubbles the paint and deteriorates the aluminum. Many other metals suffer galvanic corrosion, but in our industry, the primary metals affected by this malady are aluminum, zinc and magnesium.