Vehicle Damage Warnings

Galvanic Corrosion And Housekeeping

Galvanic corrosion is the 'cross-contamination' of dissimilar metals, in this case aluminium and steel. Avoidance of galvanic corrosion is an important issue to be considered in the repair of aluminium bodied vehicles.

Precautions to prevent the contamination of exposed bare aluminium surfaces should be taken. Good housekeeping/cleanliness should be adopted throughout repairs and especially prior to welding, pre-treatment and adhesive bonding.

The repair environment requires control and protection from dust and debris from conventional steel body repairs. All equipment used must be clearly identified and used solely on aluminium. Tools should be kept clean and in good order. Steel fastenings are coated to prevent galvanic corrosion. Fastenings should be examined during repairs and where damaged or suspect must be renewed. The use of graphite, 'penetrating' oil or copper based anti-seize compounds upon the steel fastenings is not recommended.