Alexei Volkov
Resealing a plastic shower pan can be done in a few different ways, depending on the type of leak and your budget. A simple solution is to clean the shower pan thoroughly, removing any caulking and soap scum with a sharp razor scraper, and then applying a refinishing kit with epoxy paint. This method is inexpensive and can be done without professional help. If the leak is due to a loose drain, you can try to tighten the drain assembly and apply new putty. For a more permanent solution, you may need to remove the old drain and replace it with a new one, ensuring a proper seal. This option is more costly and time-consuming. Another option is to hire a professional to refinish the shower pan with a glaze, which will result in a durable and aesthetically pleasing finish.
How to reseal a plastic shower pan
| Characteristics | Values |
|---|---|
| Materials | Epoxy, WaterWeld, Loctite marine epoxy, polyurethane sealant, grout, putty, silicone |
| Tools | Plastic bag, razor scraper, trisodium phosphate (TSP), sandpaper, wax, electric buffer, wrench, hand saw, heat gun, Dremel with a cutoff wheel, sharp knife, razor blade, pumice stone, power drill |
| Techniques | Scrape, clean, roughen, sand, wipe, fill, level, cut, etch, tighten, glaze, paint |
| Time | A few hours to a few days |
| Cost | $10 to thousands of dollars |
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What You'll Learn
Using epoxy to reseal the shower pan
To reseal a plastic shower pan, you can use epoxy. This is a permanent solution that can save you the cost of a new shower.
First, you need to prepare the shower pan by cleaning it thoroughly. Wrap a plastic bag around the showerhead to prevent any water from dripping onto the fresh paint. Use a sharp razor scraper to remove any layers of caked-on soap scum and any caulking on the curb, sides or floor of the shower base. Mix 1/2 cup of trisodium phosphate (TSP) with a gallon of warm water and use this to wash the shower base. Rinse well.
Next, you need to roughen the surface of the shower pan. You can do this by scratching the base with a sharp object or using coarse sandpaper. This will help the epoxy to bond with the pan.
Now you are ready to apply the epoxy. Make sure you are wearing gloves and eye protection, and that you are working in a well-ventilated area, as epoxy is super sticky and creates strong fumes. You can buy epoxy paint specially formulated for plastic shower pans, which will come with an epoxy hardener. Mix the epoxy and hardener in small batches, following the manufacturer's instructions. Spread the epoxy onto the shower pan, filling any gaps or holes. You can use a paintbrush to apply the epoxy, and you may need multiple coats.
Let the epoxy dry for the recommended time, then lightly sand the shower pan with fine-grit sandpaper. Wipe away the dust with a damp cloth, and apply a second coat of epoxy if needed.
Finally, if you want a higher-gloss finish, you can rub auto wax onto the finished surface once the paint has fully cured.
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Removing the drain and filling the gap with polyurethane sealant
Resealing a shower pan can be a tricky task, especially if you want to remove the drain and fill the gap with polyurethane sealant. Here is a step-by-step guide to help you through the process:
Prepare the Area
Before you begin, make sure you have all the necessary tools and materials, including polyurethane sealant, coarse sandpaper, cleaning supplies, and appropriate safety gear such as gloves and eye protection. Cover the surrounding area to protect it from any spills or mess.
Remove the Drain
Start by loosening the drain from the shower base. This may involve accessing and loosening a large hex nut from the bottom. You may need to use a wrench or a similar tool. Be careful not to damage other components during this process. Once the drain is loose, remove it carefully.
Clean and Prepare the Surface
Use coarse sandpaper to roughen the surfaces that were previously in contact with the putty or sealant. This will help the new polyurethane sealant adhere better. Clean the shower base and drain surfaces thoroughly. Remove any remaining putty or debris and ensure that the area is dry before proceeding.
Fill the Gap with Polyurethane Sealant
Choose a high-quality self-levelling polyurethane sealant suitable for shower drains. Carefully fill the gap between the pipe and the shower pan with the sealant, ensuring that you fill the entire void and avoid trapping any air bubbles. Follow the manufacturer's instructions for proper application.
Allow Curing and Reinstall the Drain
Once you have applied the polyurethane sealant, allow it to cure completely according to the manufacturer's instructions. This may take some time, but it is crucial to ensure a durable seal. After curing, you can reinstall the drain by tightening it securely in place.
Test and Enjoy
Finally, test your work by running water in the shower and checking for any signs of leaks. If there are no leaks, congratulations! You have successfully resealed your shower pan and can now enjoy a worry-free shower.
Remember that working with plumbing can be complex, and it's important to take your time and follow safety precautions. If you're unsure about any steps or have concerns about the process, don't hesitate to consult a professional for guidance or assistance.
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Cleaning the shower pan
To clean a shower pan, you'll first want to mask off the floor around it and the rest of the shower stall. Then, use a sharp razor scraper to lightly scrape the shower base and remove layers of caked-on soap scum. Be sure to scrape all the smooth parts of the shower pan, including the curb, but avoid scraping any textured portions. Next, use the razor blade to remove any caulking on the curb, sides or floor of the shower base.
After this, mix half a cup of trisodium phosphate (TSP) with a gallon of warm water. Wash the shower base thoroughly and rinse well. You may need to purchase TSP separately if it doesn't come with your refinishing kit.
If you're dealing with soap scum, carefully take a single-edge razor blade and hold it between your thumb and first two fingers. Scrape off the scum in approximately 8" sections, wiping the blade into a paper towel as you go. Then, use a soapy steel wool pad to remove any missed spots, especially in the curved areas of the tub. Rinse with hot water.
You can also try a paste made from baking soda, Castile soap, and water. Mix the baking soda and soap in equal parts, then add water to achieve a spreadable consistency. Use a scrubber to rub it into the shower pan.
For tough jobs, Clorox Cling Bleach Toilet Cleaner can be effective. Squirt it everywhere, spread it with a wet paper towel, let it sit for at least 30 minutes, then scrub with a stiff brush.
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Sanding and refinishing the shower pan
Once the shower pan is clean, you can start the sanding process. Use fine-grit sandpaper, such as 220-grit sandpaper, to lightly sand the entire surface of the shower pan. Be thorough but gentle to avoid creating deep scratches. The goal is to scuff the surface to create a rough texture for the new finish to grip onto. If you prefer, you can use steel wool instead of sandpaper, but it will require more effort. Remember to wear a respirator or face mask and safety glasses to protect yourself from any dust or particles.
After sanding, clean the shower pan again to remove any dust or debris. This step is crucial for achieving the best results, as any residue can affect the adhesion of the new finish. Once the shower pan is clean and dry, you can apply a primer. Spray the primer in a light, regular spray from one side to the other. You may need to apply two coats of primer to ensure complete coverage. Allow the primer to dry before proceeding to the next step.
After the primer is dry, you can apply the epoxy paint or refinishing product of your choice. Follow the manufacturer's instructions for application and drying times. If needed, you can lightly sand the shower pan between coats with 220-grit sandpaper and wipe away the dust with a damp cloth before applying the next coat. This will help create a smoother finish.
Finally, if you desire a higher-gloss finish, you can rub auto wax onto the finished surface after the paint has fully cured. Just be sure to avoid the bottom of the pan to prevent creating a slipping hazard.
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Replacing the shower pan
A shower pan, also known as a shower base, is the foundation of your shower, designed with a slight slope to direct water towards the drain. Over time, it may need replacing due to significant movement, visible leakage, or large cracks. Replacing a shower pan is a moderately complex project that requires some demolition work and advanced plumbing skills. Here is a step-by-step guide on how to replace a shower pan:
Step 1: Prepare the Work Area
Before beginning any work, ensure you have all the necessary tools and materials, including protective gear such as gloves, safety glasses, and a respirator. Turn off the water supply to the shower and remove any surrounding materials that may obstruct your access to the old shower pan.
Step 2: Remove the Old Shower Pan
This process involves carefully handling plumbing components. Start by removing the shower drain cover using a screwdriver. Disconnect the drain pipe from the existing shower pan by loosening the fittings. If necessary, use a reciprocating saw to cut through the drain pipe for easier removal.
Step 3: Install the New Shower Pan
Dry fit the new shower pan in the framing to ensure it aligns properly and fits flush on all sides. Mark any adjustments with a pencil. Use a belt sander or file to smooth out any high spots on the pan edges for a precise fit against the walls. Mix mortar cement according to the manufacturer's instructions and spread it evenly across the subfloor using a notched trowel to create a bed layer for the shower pan. Maintain a thickness of 1/4" across the entire pan area, sloping towards the drain cutout. Carefully set the shower pan in place, ensuring it is level and properly sloped before permanently securing it.
Step 4: Secure the Shower Pan
Use a level tool to check the orientation of the shower pan, making adjustments as needed. Secure the pan by fastening it into the floor joists using corrosion-resistant screws. Follow the manufacturer's instructions for any additional steps, such as applying adhesive or mortar.
Step 5: Connect the Plumbing
Ensure proper plumbing connections to prevent leaks. Dry fit a new PVC trap to the drainpipe and adjust as necessary. Once satisfied, glue the PVC parts together using PVC primer and cement, allowing sufficient drying time. Connect the drainpipe to the shower pan's strainer using a compression gasket for a watertight seal. Use a rubber mallet to tap the gasket and pipe flush with the shower floor. Install the screen to the strainer in the drain hole to complete the drainage setup.
Final Steps:
After the new shower pan is installed and connected, finish the project by covering the walls with cement backerboard to complete the shower enclosure and protect the walls. Always follow the manufacturer's instructions and reach out for professional help if needed.
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Frequently asked questions
To reseal a plastic shower pan, you can use a two-part epoxy paint kit, which is specially formulated for plastic shower pans and bathtubs. Clean the shower pan thoroughly, using trisodium phosphate (TSP) and a sharp razor scraper to remove any caked-on soap scum and caulking. Once the shower pan is clean, apply the epoxy paint, and let it dry for the manufacturer's recommended time.
You can use a two-part epoxy paint kit, such as the Rust-Oleum tub and tile refinishing kit or the Homax tub and tile refinishing kit. You can also use a separate repair kit to patch any holes or cracks in the shower pan.
To clean a plastic shower pan, you can use a combination of baking soda and vinegar on set-in stains. You can also use automotive sandpaper, starting with 3000 grit and working up to 7000 grit, to scrub the surface in circular motions. Keep the surface wet while scrubbing to avoid scratching.
If your plastic shower pan is leaking, you can try to fix it by removing any old putty or grout and cleaning the surface. Then, fill the gap with a self-levelling polyurethane sealant. This should create a permanent seal and prevent any further leaks.
