The best way to fix a cast iron bathtub

Clean the Cast Iron Bathtub's surface by wiping it down with a rag dampened with acetone.
Remove surface rust spots by scrubbing them away with a mild, abrasive cleaner and steel wool.
Remove penetrating rust by scrubbing it away with a solution of half muriatic acid and half water, using a rag. Always add acid to water--not the other way around. Wear long sleeves, acid-proof gloves and safety glasses. Do not let muriatic acid go down the drain. Sprinkle the treated areas with a generous amount of baking soda to neutralize the acid so it can be rinsed. Ventilate the area for the release of gases.
Fill the nicks with porcelain repair filler, using a putty knife. Allow the putty to cure according to the drying time noted in the manufacturer's instructions.
Sand the patched areas smooth with 220-grit sandpaper. Wipe away the residual sanding dust with a damp rag.
Paint the patched areas with a coat of porcelain primer, using a small paintbrush. This may be referred to as bonding agent.

Paint the patched areas with two to three thin coats of porcelain-epoxy refinishing paint. Allow five minutes of drying time between coats. Allow the final coat to fully dry before using the cast iron bathtub

CARE INSTRUCTIONS

When cleaning a cast iron bathtub always use a soft damp cloth or sponge with a non abrasive cleaning product. Stubborn marks can be removed using non-abrasive cleaning agents, such as washing up liquid, It is recommended that you rinse after each use of cast iron bathtub and also after cleaning. For a more extensive cleaning, clean with a gentle soap, such as a dish washing liquid or an all-propose cleaner.

Porcelain enamel of a freestanding bathtub or drop in bathtub can be chipped if it sustains a very hard impact. If this occurs, we recommend the services of a professional to repair the damaged area.

Different from drop in cast iron bathutb, Freestanding Cast Iron Bathtub can be installed in your bathroom more flexibly. Apart from skirted cast iron bath tub, we also suppy clawfoot cast iron tubs and pedestal porcelain enamel bathtubs.