How do you get rust off an enamel sign?

To remove rust from an enamel sign, start by gently scrubbing the rusted areas with a soft brush or fine steel wool to avoid damaging the enamel. You can also apply a rust remover solution or a mixture of vinegar and baking soda to the affected spots, allowing it to sit for a few minutes before wiping it off. Rinse with water and dry thoroughly to prevent further rusting. Once clean, consider applying a protective clear coat to preserve the sign.