Remove corrosion protection, undercoating, sealers, and other protective coatings, as necessary, to perform repairs.

Removing should include various methods for removing corrosion-protection materials, such as

• grinding
• sanding
• using a wire wheel or brush
• using a heat gun
• following OE and product manufacturer guidelines and recommendations.

Process/Skill Questions:

• What are indications of damaged corrosion protection?
• What are concerns when using heat to remove undercoatings?
• When applying corrosion protection to a repaired area, what measures should be taken to protect adjacent areas?