Paint for refinishing a plastic RV sink: the BEST options

 Painting the exterior and rim, of the plastic sink can help bring out its original beauty and also protect it against damage. It does not matter if you have an old or new plastic sink; with a little bit of paint, your sink will look as good as new again.

Painting an old plastic sink is not an easy task. These are often found in RVs, boats, and garages.

 Keep reading to learn more about this task, from what you will need to get started, to materials and tools you will need.

What you will need to paint a plastic sink

Painting a plastic sink is something that involves different steps. These range from preparing the sink and the room, applying a base coat, adding a second coat, and finally also adding a top coating.

Some paints (such as the one below) don’t need a primer.

Step 1: Prep work

Before painting your plastic sink, you will need to prepare the area. Make sure you turn off the water supply to the sink. This can be done by closing the valves on the water supply pipes.

 Then, cover the rim of the sink with a plastic drop cloth to protect it from paint overspray. You can do the same with the floor.

It is also an option to remove the sink. You will have to close and remove the water supply and remove the drain. Once this is done, you will have to remove the bolts that keep the sink in place. Make sure that you don’t drop it!

Next, use a sponge and a mild detergent solution to clean the sink and the rim. Rinse the sponge and then place it in a bowl of fresh water so it does not get any scum on it. The detergent solution can be any dish detergent that is mild, like a natural soap or a dish detergent.

Make sure that there are no cracks or dents in the sink. There are products that make it easy to repair these uneven parts.

Step 2: Base coat

Now that the prep work has been done, we can start painting. It is a great idea to apply a base coat first. This smooths out uneven parts and makes sure that you will get a great end result. 

Base coats can be bought seperatly in any paint store.

Start with a base coat for plastic sinks. This coat will give your plastic sink a smooth, uniform color. You can use a base coat for plastic sinks made by professionals. It is usually a latex paint that is formulated for plastic. 

 If you want to apply base coat to the interior walls of your plastic sink, you will need to use a brush or a roller. A roller is easier, but a brush can achieve the same results. However, using a brush can make it easier to get the base coat to cover the plastic. Make sure the base coat is going onto the plastic and not onto the wall.

Let this dry for a few hours before you move forward. 

Step 3: Second coat

Once you have the base coat on, you can apply a second coat to the exterior plastic sink. This can give the plastic a glossy finish. 

 In some cases this is the same product as the one that is used for the base coat. You can also get another paint if you want to add color to your sink.

Once again, make sure to let the paint dry before you move forward. Make sure that the paint is even and that every part of the sink is covered.

Let this dry for several hours (check the manual of your paint for more information on this). 

Step 4: Top finish

Once the color and finish of your plastic sink is done, apply a top finish to protect your plastic sink from the elements.

 A plastic-sink protector will protect your plastic sink against scratches and stains. 

There are many types of plastic-sink protectors. You can choose a non-slick finish that looks like a paint finish or a slick finish that makes your sink look like metal. These are usually water-based top finishes. 

You can also choose an oil-based top finish, which is more durable but not as water-resistant as the other types. If you want to use a glossy finish, you can also use an acrylic top finish that is formulated for plastic. It comes in many colors and finishes and will make your plastic sink look like glass.

This has to dry for several hours or a day (depending on the weather and temperature).


Now that the exterior of your plastic sink is done, you can now reinstall or reactivate your sink and use it.

Painting your plastic sink can make it look brand new. Make sure you follow the instructions on cleaning your new sink before you do this. With a bit of work and a little bit of paint, your plastic sink will look clean. Plastic sinks are very durable and can be used for many years. By repainting your plastic sink, you can extend its lifespan and ensure that it does not get damaged by wear and tear.

Plastic sinks are generally used in a garage or kitchen. If you work with acids, it is possible that the sink has been damaged and you might consider replacing the sink instead of repainting it. Plastic sinks are generally quite cheap and easy to install. Just make sure that it hangs level with the floor to avoid water leaks and other problems.

A plumber can help you with installing a new sink if you don’t want to do this yourself.