- 1). Fill a bucket with warm water. Prepare galvanized tin by washing off any dirt and grime with a water-based liquid detergent. Allow to dry.
- 2). Wipe over the galvanized tin using a cloth soaked in white vinegar and allow to dry. This will help the paint to stick.
- 3). Apply an even coating of exterior latex primer to the galvanized tin. Allow to dry.
- 4). Paint over the latex primer with exterior latex paint. Wait for paint to dry before applying a second coat.
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