Which coating type should not be removed from surfaces to be welded?

Which coating type should not be removed from surfaces to be welded?

• A. Paint
• B. Galvanized
• C. Primer
• D. Powder coat

Answer: (B)

The surface coating that should not be removed from the areas to be welded is the galvanized coating. The galvanizing provides ongoing corrosion protection for the metal, and preserving it helps maintain the component’s protective barrier after repair. Removing it would expose raw steel to moisture and could lead to rust at the weld line, or require reapplication of protective coating later. In contrast, coatings like paint, primer, and powder coat are combustible or contaminate the weld area, so they’re typically removed in the weld zone to ensure clean fusion and a strong weld.

The surface coating that should not be removed from the areas to be welded is the galvanized coating. The galvanizing provides ongoing corrosion protection for the metal, and preserving it helps maintain the component’s protective barrier after repair. Removing it would expose raw steel to moisture and could lead to rust at the weld line, or require reapplication of protective coating later. In contrast, coatings like paint, primer, and powder coat are combustible or contaminate the weld area, so they’re typically removed in the weld zone to ensure clean fusion and a strong weld.