Omar Khalid
Redoing a plastic bathtub is a great way to give your bathroom a facelift without breaking the bank. Bathtub refinishing is a cost-effective way to refurbish the surface of a bathtub, and can be done by either hiring a professional or using a DIY kit. The process involves repairing small cracks and holes, filling and sanding, applying a bonding agent, and then coating the tub with epoxy resin or acrylic enamel. While DIY kits are more affordable, they may not be as durable as a professional refinishing job, and it's important to take precautions when working with toxic fumes and materials. Whether you choose to refinish your bathtub yourself or hire a professional, giving your plastic bathtub a makeover can be a great way to improve the look and feel of your bathroom.
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Cleaning the tub
Before you begin the process of redoing your plastic bathtub, it is important to clean the tub thoroughly. This will ensure that any treatments you apply will adhere properly and that your new finish will last.
Firstly, remove all caulking from the joints around the tub. Use a putty knife to clean any dirt or caulk residue from the bathtub openings. You should also remove any hardware, such as the bathtub spout, during the cleaning process.
Next, use a cleaning solution to chemically clean the surface of the tub. This will remove any soap scum, mineral deposits, or body oils that may be present. You can purchase a cleaning solution as part of a bathtub refinishing kit, or you can use a household cleaner. Ensure that you wear protective gloves and goggles when handling chemical cleaners.
Once the tub is clean, you may need to sand the surface to ensure it is smooth and free of any gloss. Start with a medium-grit sandpaper, such as 220-grit, and then move to a finer grit, such as 320-grit. This will create a rough surface for the new finish to adhere to. After sanding, be sure to wipe down the tub again to remove any dust or debris.
Finally, you may want to use a cleaner or thinner to ensure the tub is free of any remaining residue before beginning the refinishing process.
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Filling cracks and chips
Before you start repairing cracks and chips in your plastic bathtub, it is important to know the type of surface you have. Different surfaces require different types of repair kits. Common bathtub surfaces include porcelain, enamel, ceramic, acrylic, and fibreglass.
Once you have identified the surface type, you can purchase the appropriate repair kit. These kits are widely available at local hardware stores and online. The kits usually contain instructions for mixing and applying the epoxy. You will need to mix the two components together in a mixing tray with a small stirring stick. If your kit does not come with a tray and stick, you can use a small disposable tray and a disposable stick, such as a toothpick or craft stick.
Before applying the epoxy, ensure that the surface is clean and dry. Wash away any soap scum or residue with an abrasive cleaner. Sand the area as needed, and then clean it again with cotton swabs and rubbing alcohol to remove any remaining grime. It is important to note that you should only sand the area where you will be applying the epoxy to avoid scratching the rest of the tub's surface.
Now, you can start filling the cracks and chips. Use a small spatula, craft stick, or toothpick to smooth the mixed epoxy into the damaged area. Apply thin layers of epoxy one at a time, smoothing them in one direction. Fill the crack or chip completely, slightly overfilling if necessary.
Finally, allow the epoxy to dry and cure fully. Sand the repaired area with fine-grit sandpaper to smooth it out, and then clean the area again. If needed, you can paint over the repaired area to match the colour of your bathtub.
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Sanding
Before you start sanding, it is important to ensure that your bathtub is thoroughly cleaned and dried. Use a sponge and a bath cleaning product to remove any grease, grime, or soap scum that may be present. This step is crucial, as any remaining dirt or moisture can prevent the new finish from adhering properly.
Once your bathtub is clean and dry, you can begin the sanding process. Use fine-grit sandpaper, starting with 220-grit sandpaper and progressing to 320-grit for a smoother finish. Sand the entire surface of the bathtub evenly, paying extra attention to any areas with cracks or scuffs. You may also use a red Scotchbrite pad to ensure that all gloss is removed. Take your time during this step, as a thorough sanding job will help create a smooth and durable finish.
After sanding, it is important to wipe down the bathtub to remove any residual dust or debris. Use a damp cloth or towel for this step, and ensure that all traces of the sanded surface are removed. Allow ample time for the bathtub to dry completely before moving on to the next step, which is typically the application of a bonding agent or primer.
Overall, sanding is a crucial step in the process of refinishing a plastic bathtub. It prepares the surface for a new finish, helping to create a smooth, durable, and long-lasting result.
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Applying a bonding agent
When it comes to redoing a plastic bathtub, one of the key steps is applying a bonding agent to ensure that the new finish adheres firmly to the old surface. Here is a detailed guide on this critical process:
Preparing the Work Area
Before applying the bonding agent, it is essential to ensure proper ventilation in the bathroom by opening windows and turning on exhaust fans to minimise toxic fumes. Wear manufacturer-recommended breathing protection, such as a respirator, to safeguard yourself from inhaling any harmful substances during the process. It is also advisable to wear protective gear, such as gloves and eye protection, to prevent any accidental contact with the chemicals.
Surface Preparation
The surface of the bathtub needs to be meticulously prepared to ensure the bonding agent adheres effectively. Start by giving the tub a thorough cleaning to remove any soap scum, mineral deposits, or body oils. You can use a putty knife to scrape away any dirt or caulk residue from the bathtub openings and joints. Once the tub is clean, fill any cracks or chips with an appropriate filler and sand the repaired areas smooth, creating a uniform surface.
Applying the Bonding Agent
Now, you are ready to apply the bonding agent. Follow the manufacturer's instructions for proper usage and preparation of the specific product you are using. Bonding agents may have different application methods and curing times, so refer to the product's guidelines. Generally, you will apply the bonding agent directly to the prepared surface of the bathtub. Use a roller or brush to ensure even coverage, working quickly to avoid the agent drying too rapidly. Coat the entire tub, including the sides, tub deck (horizontal surfaces), and the bottom. Pay extra attention to the edges, using a sponge brush to ensure a smooth finish.
Curing and Drying
After application, allow the bonding agent to cure thoroughly according to the manufacturer's instructions. This curing process ensures that the agent forms a strong bond between the new finish and the old surface of the bathtub. Do not disturb or touch the surface during this curing period to prevent any imperfections. Once the bonding agent has cured, you can proceed with the next steps of refinishing your plastic bathtub, such as applying acrylic enamel to restore its original beauty and shine.
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Painting
Before painting, it is important to clean the tub thoroughly and remove all caulking from the joints. You should also remove any hardware, such as the bathtub spout, and use a putty knife to clean dirt or caulk residue from bathtub openings. If your tub has a glossy finish, you will need to sand it thoroughly with 220-grit sandpaper, followed by 320-grit, and a red Scotchbrite pad to ensure the paint adheres properly.
When you are ready to paint, make sure the room is well-ventilated by opening windows and turning on the exhaust fan. Wear breathing protection, such as a respirator, to avoid inhaling toxic fumes. Then, apply the paint with a roller, using vertical and horizontal strokes to prevent drips and roller ridges. Work quickly, as epoxy coatings harden once mixed. Start by painting the sides of the tub, then move to the tub deck (horizontal surfaces) and finish with the bottom. Use a sponge brush for the edges to ensure a smooth finish.
You can use a marine paint such as Pettit Easypoxy, Interlux Brightside Enamel, or Epiphanes Perfection, which will hold up well to water and cleaning, as long as you avoid using abrasive cleaners.
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Frequently asked questions
The process of refinishing a plastic bathtub involves first cleaning the surface, then filling in any cracks and chips, sanding the surface, applying a bonding agent, and finally painting the surface with acrylic enamel.
Bathtub refinishing kits emit toxic fumes, so it is important to ensure proper ventilation in the room. Open windows, turn on the exhaust fan, or set up portable fans to improve ventilation. It is also recommended to wear breathing protection, such as a respirator, when sanding or applying the refinishing product.
DIY bathtub refinishing kits are available and typically include epoxy resin with hardener, etching powder, latex gloves, steel wool, a brush, cleaning solution, cleaner or thinner, and safety goggles. You can also use marine paint such as Pettit Easypoxy, Interlux Brightside Enamel, or Epiphanes Perfection for a tough finish.
The average cost of a do-it-yourself bathtub refinishing kit is $100 to $200. Hiring a professional for the project may cost between $330 to $630, depending on the product used and the complexity of the job.
Refinishing a bathtub is a more cost-effective option compared to replacing the entire tub. It is also a good option for antique or valuable tubs that are too cumbersome to move or too valuable to replace. Additionally, refinishing can cover deep stains, rust, cracks, or peels, giving your bathtub a fresh new look.
