
Plastic sinks are durable, but over time, they can become stained, discoloured, or dull. One way to resurface a plastic sink is to give it a fresh coat of paint. This is a cost-effective way to upgrade your sink without having to replace it. Before painting, it's important to clean the sink thoroughly and roughen its surface with sandpaper to help the paint adhere better. You can then apply a coat of primer before painting with small strokes to ensure an even texture. It's also crucial to cover all surrounding surfaces when using spray paint to prevent paint droplets from landing on them. In addition to paint, home remedies such as using lemon juice, vinegar, baking soda, or aluminium foil can help remove tough stains and give your sink a new lease of life.
| Characteristics | Values |
|---|---|
| Purpose | To restore the plastic sink to its original appearance and make it seem new again |
| Steps | 1. Clean the sink with a powerful cleanser designed to remove oil, soap scum, and mildew. |
| 2. Use a palm sander and sandpaper to roughen the surface of the sink. | |
| 3. Tape off the waterways, drain, edge, and any faucets. | |
| 4. Apply a coat of primer before painting. | |
| 5. Paint the sink with acrylic paint using small strokes for an even texture. | |
| 6. Allow the paint to dry completely before removing the tape. | |
| 7. Apply an additional layer of coating for a stronger surface. | |
| Common Mistakes | Rushing the preparation process, such as skipping or rushing the cleaning and sanding steps, can result in poor adhesion and an uneven finish. |
| Alternative Solutions | - Use a polish specifically labelled for stainless steel. |
| - Try a home remedy: place aluminium foil, silverware, salt, and baking soda in a glass or plastic pan, pour boiling water, wait for 30 minutes, then buff with a soft cloth, rinse and dry. | |
| - Use cleaning agents such as soft scrub and Bar Keeper's Friend to remove stains and marks. | |
| Recommended Products | - Krylon Fusion for Plastic |
| - Rust-Oleum Specialty Plastic Primer | |
| - PlastiKote 3101 Super Spray Paint | |
| - EP-Acrylic paint |
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What You'll Learn
- Clean the sink with a powerful cleanser to remove oil, soap scum and mildew
- Tape off the waterways and drain trim to protect from paint
- Apply a coat of primer to help paint adhere to the plastic surface
- Paint the sink with small brush strokes for an even texture
- Allow paint to dry and cure for 24-48 hours before using the sink

Clean the sink with a powerful cleanser to remove oil, soap scum and mildew
Plastic sinks are highly susceptible to staining, especially if used to wash hands after painting or doing other industrial work. Over time, paint may also begin to peel away, leaving the sink looking dull. To resurface a plastic sink, it is important to first clean it thoroughly, removing any oil, soap scum, mildew, and other residues.
Soap scum is a white film that forms when the fatty acids, talc, and other ingredients in bar soap react with the minerals in hard water. It also contains body oil, dirt, bits of dead skin, and bacteria. This residue can easily combine with mildew and mould, becoming challenging to remove if left uncleaned. To prevent soap scum from forming, it is recommended to switch to liquid soap, as the talc and fatty acids in bar soap are what cause the scum. Keeping the sink dry and installing a water softener can also help.
To remove soap scum, a weekly scrub using a powerful cleanser designed to attack grime is recommended. Natural ingredients such as baking soda, vinegar, lemon juice, and borax are effective in removing soap scum. Baking soda is a mildly abrasive substance that can be used to scrub away the scum, while vinegar, lemon juice, and borax help dissolve it. A mixture of vinegar and water can be applied directly to a sponge and used for scrubbing, or combined with dishwasher detergent and sprayed onto the affected area. For tough stains, a small amount of non-gel toothpaste can be applied to the sink and scrubbed gently.
To remove mildew, a solution of vinegar and water can be used, with the addition of dish detergent to cut through greasy grime. Ammonia is another strong alkaline cleaner that helps break down and dissolve soap scum. It can be mixed with water and sprayed onto the affected area. For natural stone sinks, a natural stone cleaner should be used to avoid damaging the surface.
Once the sink is thoroughly cleaned and dried, it can be resurfaced using paint.
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Tape off the waterways and drain trim to protect from paint
Painting a plastic sink can be a great way to restore it to its former glory. However, before you start painting, it's important to take the necessary steps to protect the areas that you don't want to be painted, such as the waterways and drain trim.
To do this, you'll need to use painter's tape, also known as masking tape. Start by thoroughly cleaning the sink and drying it. Once the sink is dry, you can begin taping off the areas you want to protect. This includes the waterways and the drain trim. Make sure to press the tape firmly against the sink to create a tight seal that will prevent paint from seeping underneath.
When taping off the waterways, be sure to cover all the openings to ensure that no paint finds its way inside. You may need to use smaller pieces of tape to cover all the curves and contours of the waterways effectively. As for the drain trim, you'll want to cover any exposed areas that you don't want to be painted. This may include the drain basket, the flange, and any visible parts of the drain pipe.
Taking the time to properly tape off these areas will ensure that your paint job looks neat and professional. It will also make cleaning up much easier since you won't have to worry about accidentally painting areas that will be difficult to correct. Once you're satisfied with your taping job, you can confidently move on to the painting stage, knowing that your sink is protected.
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Apply a coat of primer to help paint adhere to the plastic surface
When it comes to resurfacing a plastic sink, applying a coat of primer is a crucial step to ensure the paint adheres well to the plastic surface. Here's a detailed guide on this process:
Choose the Right Primer:
Select a primer specifically designed for plastic surfaces. A popular option is the Rust-Oleum Specialty Plastic Primer, which can be brushed or sprayed on. This primer will help the paint stick to the plastic and provide a smooth base for your chosen topcoat colour.
Prepare the Work Area:
Before priming, ensure the work area is well-ventilated. Cover nearby surfaces, such as the floor, walls, cabinets, and any fixtures around the sink, as primer overspray can be messy. Wear protective gear, such as goggles and a mask, to safeguard yourself from any primer or paint fumes.
Clean and Prepare the Sink:
Thoroughly clean the sink to remove any dirt, grease, or soap scum. You can use a powerful cleanser designed for this purpose. Once clean, dry the sink completely. Next, use a palm sander or sandpaper to roughen the surface of the sink gently. This step helps create a better adhesion for the primer and paint. Remember to remove any dust or debris after sanding.
Tape Off Areas:
Use painter's tape to cover any areas you don't want to be painted, such as the sink's drain, edges, and faucets. This step ensures that only the desired areas are primed and painted.
Apply the Primer:
Follow the instructions on the primer you've chosen. Typically, you'll use a paintbrush or a spray can to apply the primer. Ensure you apply a thin and even coat, following any specific instructions provided by the manufacturer. Allow the primer to dry completely before moving on to the next step, which is painting your sink a colour of your choice.
By following these steps, you'll ensure that your primer coat helps the paint adhere strongly to the plastic surface of your sink, resulting in a durable and aesthetically pleasing finish.
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Paint the sink with small brush strokes for an even texture
Painting a plastic sink is a great way to restore it to its former glory. Once you have prepared the sink by cleaning and smoothing its surface, taping off the waterways, and allowing it to dry, you can start painting. It is recommended to use small brush strokes when painting a plastic sink to achieve an even texture. Here are some detailed instructions for this step:
Firstly, ensure you have the right tools. You will need a paintbrush and good-quality acrylic paint. Krylon Fusion for Plastic, Rust-Oleum Specialty Plastic Primer, and Dupli-Color Vinyl and Fabric Coating are all suitable products for painting plastic sinks. The primer will help the paint adhere to the plastic surface and provide a smooth base.
Next, start painting with small, even brush strokes. Keep your hand steady to avoid any unevenness in the paint. Take your time and be careful not to overload the brush with paint to avoid drips. Work in sections if needed, allowing each area to dry before moving on to the next. This will help you maintain a consistent texture across the entire sink.
If you are using a brush-on paint, such as the Rust-Oleum Specialty Plastic Primer, you can follow up with a standard paint of your choice as the topcoat. This allows you to add a pop of colour or achieve a specific finish, such as gloss, satin, or matte. You can also use EP-Acrylic paint, which is specifically designed to bind with the sink's original plastic, creating a smooth and glossy surface.
For spray paints like Krylon Fusion for Plastic, be extremely cautious of overspray. Cover all surrounding surfaces that are not meant to be painted, including walls, floors, cabinets, and the faucet. Wear protective gear, such as goggles and a mask, during the painting process.
Finally, allow the paint to dry completely before removing the tape and using your sink again. The drying time may vary depending on the paint used, but it generally takes around 30 minutes to an hour for the first coat to dry. It is recommended to apply at least two coats of paint for a stronger and more durable finish.
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Allow paint to dry and cure for 24-48 hours before using the sink
Painting a plastic sink can be a great way to restore it to its former glory. It is important to be patient and let the paint dry and cure completely before using the sink again. This typically takes 24 to 48 hours, and rushing this process can result in poor adhesion and an uneven finish.
During the curing process, avoid touching or handling the painted surface. This will ensure that your hand doesn't end up covered in paint and that the paint sets properly. It is crucial to allow the paint to cure for the full duration, even if it feels dry to the touch earlier.
While waiting for the paint to cure, you can take this opportunity to clean and organize the surrounding area. Ensure that all your painting supplies are put away, and any paint-covered surfaces are properly cleaned and protected. This includes removing paint from walls, floors, cabinets, and fixtures.
Once the curing process is complete, you can start using your sink again. Enjoy your freshly painted and resurfaced plastic sink! Remember to care for it properly to maintain its new look. Regular cleaning and maintenance will help extend the life of your newly painted sink.
By allowing the paint to dry and cure for a full 24 to 48 hours, you will achieve the best results and ensure that your hard work pays off. This patience will result in a durable and aesthetically pleasing finish on your plastic sink.
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Frequently asked questions
You can use a combination of white vinegar, water and baking soda to clean the sink. For extra tough stains, create a baking soda paste. To paint the sink, use a primer such as Rust-Oleum Specialty Plastic Primer, and then a paint designed for plastic, such as Krylon Fusion for Plastic, PlastiKote 3101 Super Spray Paint or EP-Acrylic paint.
First, clean the sink thoroughly using a powerful cleanser to remove oil, soap scum and mildew. Then, use a palm sander to rough up the surface of the sink. Tape off the waterways and drain, and then apply the primer and paint.
It will take 15-30 minutes for the primer and first coat of paint to dry. You should then apply another layer of coating. Allow 24 to 48 hours for the paint to set before using the sink.
Resurfacing a plastic sink is a cost-effective way to upgrade your sink without needing to replace it or make any plumbing changes. It can also help to remove tough stains and discolouration.











































