Cast Iron Bathtub Project

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Cast Iron Bathtub Project Articles

Cast Iron Bathtub Project

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Got one of those old style painted cast iron bathtubs looking a little worse for wear? Without having to give your entire bathroom an expensive makeover, you can spruce it up with Rustoleum’s new Tub and Tile Refinishing kit. Tub and Tile acts and looks like ceramic and porcelain and will make your bathroom look good as new.

For this project, we decided to get a lending hand from expert painter Trev to show you guys how easy it can be done.

Step 1: Scraping back and sanding off enamel

It’s really up to your discretion how much time you spend on this step. You can give it a few days of hard labour and get off every last morsel of enamel or you could give it just a few solid hours. For this one, Trev spent a few hours lifting as much enamel as possible. The key to this step is removing moisture from the area. Sanding can be extremely useful here. Moisture equals mould and because bathtubs are exposed to a lot of water, you want to minimise any crevices where water can creep in. The great thing about Tub and Tile is that it is a texture based paint which means it will leave a smooth even finish.

Step 2: Clean the area

Vacuum up and clean away the scraped off enamel and any other excess dirt. Cleaning the area with a heavy duty detergent will help remove any unwanted grime and dirt from the area before you paint it. When doing this, you will want to make sure you are using rubber gloves, a dust mask and any other necessary safety equipment.

Step 3: Apply paint

Tub and Tile is a two part epoxy acrylic which provides excellent adhesion, durability and colour retention in high moisture areas. Before you begin mixing the two parts togethers, make sure you have already read all instructions carefully because once the two parts are mixed, you have roughly 90 minutes to get the job done before the paint hardens.

You will also need to make sure your area is well ventilated. Open any doors and windows and where possible, use a small room fan to keep fresh air circulating through the room.

Stir each part separately to mix in pigment that may have settled to the bottom of the can. When you have combined the two parts, stir for an extra two minutes.

Use a foam brush or hand roller made for kitchen and bath use. Use light even strokes whilst keeping a wet edge as you go. Any bubbles that may show up whilst drying will eventually disappear due to the products self levelling properties. Let the paint dry for a few hours before applying the second coat and atleast three days before exposing the surface to water.

Step 4: Don’t forget the tiles

It’s always a great idea to give some love to the tiles around your newly refurbished bathtub to minimise the return of any dirt and mould. Apply an undercoat primer to ensure your topcoat applies perfectly. In this project we used a Zinsser Cover Stain underneath with a Dulux Super Enamel topcoat tinted with Lexicon Quarter.

Trev made sure to remove the taps whilst painting to make sure they didn’t get any paint on them. Good one Trev.

Step 5: Apply Selley’s Wet Area Silicone Sealant

Sealing off gaps with Selley’s Wet Area Silicone Sealant will prevent moisture from reaching into unwanted spaces and minimise mould growth. You want to apply this last in this case because it has a soft finish and paint will not stick to it. It also gives the area a great protective finish.


This type of bathroom project is typically done as a DIY refurbishment to make the space look good as new again. With any project like this, we highly advise that you call your nearest Inspirations Paint store and speak with our expert staff before you begin. They will make sure you get the job done right the first time.

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