How to Fix & Refinish an Old Cast Iron Sink
Don’t simply do one thing or else you may not solve the problem of cracks and rust in cast iron sinks.
How To Repair Cast Iron Sinks With Cracks
Find the Crack: assess how big or large is that crack in your pipe. You may be able to get away with cosmetic repairs for hairline cracks; however, larger gaps will likely require more extensive repair.
Fill in Crack with an Epoxy: Fill the crack using a concrete-approved epoxy. Paint new layers on slowly allowing each layer to completely dry before doing the next. This method helps to retain the beauty of sink while ensuring that it is resealed and secured.cast iron sink repair (ad)24
Wet-Sand: After the epoxy has hardened, wet-sand it to a smooth finish or to remove any dust particles and prevent accidentally scratching neighboring enamel23.
How to Remove Rust from Cast Iron Sinks
Vinegar: Use a spray bottle with diluted vinegar in the sink and leave for 30 minutes. Vinegar is acidic, blood orange vinegar interacts with rust in chips and nicks15
Scrub: With the affected places soaked, scrub them with a nylon scouring pad to eliminate any rust residue15.
Other Methods: If that does not work, then you may want to use a baking soda and vinegar or lemon juice mixed with salt paste which will be more abrasive. Rub it into the rusted area, leave for 15-20 mins and scrub off156
Preventive Measures
Regular cleaning: keep rust away from settling on your sink by simply using a nonabrasive cleaner and you have to remember that rubber matts should never get inside the basin or else it will penetrate through creating the cause of rust buildup.
Protective Coating: Following the repairs, applying a rust-inhibiting paint or sealant can help prevent future deterioration24.
With these steps, you can get your cast iron sink back to its original state and also make it last.