Rejuvenate the appearance of your fireplace by refinishing it with the correct coating. If your fireplace is made of cast-iron, it is important to consider adhesion. Metallic surfaces won't accept paint adhesion because they are nonporous. Combat this by treating the fireplace with an acidic etching primer. Once the cast-iron fireplace is primed, it will accept a colourful painted finish. Select one specifically formulated for surfaces exposed to high heat or paint failure will occur.
Use a sponge to wash your cast-iron fireplace with a degreaser. Rinse the fireplace using wet rags.
Protect areas next to the cast-iron fireplace using painter's tape. Protect the hearth using a dust sheet.
Use a soft polyester brush to coat the cast-iron fireplace with etching primer. Move the brush vertically across the cast-iron, applying consistent, soft pressure. Allow the metallic fireplace to dry for two hours.
Wash the brush using fresh water.
Paint the cast-iron fireplace just as you primed it. Let the cast-iron dry for two hours.
- Use a high-temperature enamel on cast-iron fireplaces or the finish will bubble and peel.
- Never use nylon brushes to finish cast-iron fireplaces or flaws will show in the finish.
- Don't paint unprimed cast-iron fireplaces, or expect peeling.
- Never use ordinary primers on cast-iron fireplaces, or expect poor durability.
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