If Flex Seal has been your go-to solution for fixing a leaky roof, a cracked basement wall, or a leaking gutter, then you’re well aware of its incredible effectiveness. However, what if you want to refresh its appearance by changing its color or giving it a new look? Is it possible to paint over Flex Seal? The answer is yes, but before you dive into the process, it’s essential to be aware of some critical things.

Flex Seal

Understanding the Properties of Flex Seal

Before we dive into how to paint over Flex Seal, let’s take a closer look at what it is and how it works. Flex Seal is a liquid rubber coating that dries into a flexible, waterproof barrier. It can be applied to a variety of surfaces, including metal, wood, concrete, and more. Once it dries, it forms a strong bond with the surface, creating a durable and long-lasting seal.

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Can You Paint Over Flex Seal?

Paint Over Flex Seal

Preparing the Surface for Painting

If you’re planning to paint over Flex Seal, the first step is to prepare the surface. This means cleaning it thoroughly to remove any dirt, debris, or other contaminants that could interfere with the adhesion of the paint. You can use a mild detergent and water to clean the surface, or a more heavy-duty cleaner if necessary. Once the surface is clean, allow it to dry completely before moving on to the next step.

Choosing the Right Paint

When it comes to painting over Flex Seal, not all paints are created equal. You’ll want to choose a paint that is compatible with rubber, as well as one that can adhere to the liquid rubber coating coating. Latex and acrylic paints are good choices, as they are flexible and can bond well with the rubber surface. Oil-based paints are not recommended, as they can crack and peel over time.

Applying the Paint

Once you’ve chosen the right paint, it’s time to apply it to the surface. You can use a brush, roller, or sprayer to apply the paint, depending on the size and shape of the surface. Be sure to follow the manufacturer’s instructions for application, and apply the paint in thin, even coats. It’s better to apply several thin coats than one thick coat, as this will help to ensure an even finish and prevent drips or runs.

Applying-flex seal

Tips and Tricks

Here are a few additional tips and tricks to help you get the best results when painting over Flex Seal:

  1. Allow the Flex Seal coating to dry completely before painting over it. This will help to ensure that the paint adheres properly and doesn’t peel or flake off.
  2. Use a primer before applying the paint, especially if you’re painting over a dark-colored liquid rubber coating coating. This will help to ensure an even finish and prevent the underlying color from bleeding through.
  3. If you’re painting over a large surface, consider using a paint sprayer for faster and more even coverage.
  4. Be patient and allow each coat of paint to dry completely before applying the next. Rushing the process can lead to uneven or peeling paint.


In conclusion, painting over Flex Seal is definitely possible, but it requires some careful preparation and the right materials. By following the tips and tricks outlined in this article, you can achieve a beautiful, long-lasting finish that will give your Flex Seal-coated surfaces a fresh new look.