My brother and my sister-in-law are the happy owners of an incredible beautiful beach house. There’s not much to repair or replace inside, because the house it’s absolutely amazing. However, they were committed in replacing the upstairs cast iron tub because it was scratched and stained. I was shocked and I told my sister-in-law to stop this expensive process because the bathtub can be easily restored.

I used the same technique on my cast iron tub and the scuff marks and scratches disappeared like magic. Yes, cast iron bathtubs are prone to scratches and rust. To prevent rust from becoming a problem, cast iron bathtub manufacturers coat their products in enamel or porcelain. Although still quite tough, the coating on your sink is more susceptible to chipping and scratching than the cast iron underneath. You probably need to remove scratches from this coating and not from the cast iron itself.

You need:

  • Dish soap
  • Baking soda
  • Vinegar
  • Scrub sponge
  • Kohler Cast Iron Cleaner
  • Paper towels or Rags

Cleaning Instructions:

1. Rinse the bathtub thoroughly. Next, sprinkle baking soda liberally in the tub and on a scrubber sponge.
2. Scrub the cast iron tub using a little bit of force. Pour vinegar onto your sponge and in the tub. Use the sponge to wipe and clean the baking soda out of the tub. Rinse the tub with water.
3. Your cast iron tub should be clean now, but you might still have some scratches and marks on the surface. That’s okay, because it’s time to break out the Kohler Cast Iron Cleaner. This is a miracle in a bottle!
4. This is the cleaner recommended by our kitchen designer. Honestly, if I didn’t know about this cleaner, I would have been disappointed. Kohler Cast Iron Cleaner did miracles in restoring my backyard cast iron sink and bathtub.