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Cast Iron Care and Repair

 

 
 
 
Whether you are cleaning or repairing your new cast iron kitchen sink for the first time or refurbishing a vintage clawfoot tub, there are methods to make the task easier. Cast iron bathtubs and sinks are coated with a hard, glass-like porcelain enamel that is fused to the cast iron under high temperatures, which makes them extremely durable and scratch resistant.
 
 
Cleaning Cast Iron
For standard weekly cleaning, mix 1 gallon of hot water with 2 tablespoons of your favorite gentle dish soap. Choosing a soap that contains a grease-cutting formula works great for removing soap scum. A soft wash cloth or sponge can be used for scrubbing, followed by a thorough rinse with clean water.

For deeper cleaning, mix 1 gallon of hot water with ¼ cup of baking soda and ¼ cup of ammonia. Ammonia is great for getting rid of heavier deposits of grease and soap scum. Use a non-abrasive sponge for scrubbing. Rough sponges or steel wool should be avoided, as they will scratch the surface. Rinse well with clean water, and dry thoroughly with a soft cloth after cleaning.
 
 
Cast Iron Repair
While the porcelain enamel over the cast iron is very resilient, it is possible to chip the coating as the result of a hard impact. It is recommended that you consult a professional for repairing chipped porcelain, as special materials are required and a professional will typically warrant their work for 1-3 years. Porcelain enamel repair kits are available on the market, however, and if you choose to take this route it is important that you follow the instructions very closely.