Does Flex Seal Work on Concrete Material? Here’s the Answer

Flex Seal is a product that’s ideal for a DIY repair project, whether for the outside or inside your house building. This rubber sealant coating claims to not peel or crack during colder days and not drip or sag during warmer seasons, as well as to be able to prevent corrosion.

Does Flex Seal Work on Concrete Material

However, you may ask, does Flex Seal work on concrete material effectively? Find out the answer below.

Does Flex Seal Work on Concrete?

Flex Seal can work on nearly any type of surface, from wood, glass, metal, plastic, tile, aluminum, masonry, porcelain, vinyl, drywall, etc. So, the answer is yes. It does work on concrete as well.

Concrete is a common material to be used in the basement, where water leakage often happened. You may perform leak repair from the outside or inside of the basement by using this item. Here are three steps you can fix leaking basement concrete with spray-on Flex Seal:

  1. Prepare the affected area

Ensure that the area is dry and well-ventilated, so there is no remnant of water from rain, dew, or snow. Once you have determined the area to work with, cover its surroundings with fabric cloth to prevent the Flex Seal from being sprayed on unwanted areas.

  1. Clean out the affected area’s surface

Remove any dust or dirt on the affected area’s surface. Use a cleaning solution and damp cloths to wipe it down if the accumulated dirt is difficult to eliminate.

After it has been cleaned, let it dry. The spray product effectively works on wet surfaces, but it works better on the dry surface. Besides, you may require painter’s tape to limit the area that’s going to be treated.

  1. Spray on the product

Shake the Flex Seal can properly for a minute or so. Then locate it at eight to twelve inches distance from the affected area before you spray the product in a sweeping motion.

Focus first on the holes and their surroundings before you move into the edges. Allow the first coat of spray to dry for about 24 hours before applying the second coat, then let it dry completely for 48 hours.

Does Flex Seal Work on a Concrete Foundation?

Another common question to be asked about this sealant coat is how long does Flex Seal last? The answer is it depends on the environment, the additional coats, and how you maintain it. However, on average, the product’s users find it to last for years without losing its sealing quality or strength.

To make sure that it can last as long as possible on the concrete foundation, follow the tips below:

  1. Make sure the area you’re working on is clean.
  1. Mix the sealant with a concrete patch until the combination reaches a thin paste consistency.
  1. Apply more than one coat and ensure that the area is covered as much as possible.
  1. Smooth out any excess of mixed paste to achieve an even finish.
  1. Wait for the sealing to dry completely at least for 24 hours.

Does Flex Seal Work on Concrete Walls that Leak Water?

Does Flex Seal Work on Concrete Walls that Leak Water

You have found out that the sealant product works on the concrete, but does flex seal work on water pipes? Yes, it is. You can apply it to the water leaking pipe directly and wait until it forms a seal on top of the leak.

Does Flex Seal work on concrete have been answered, so good luck with your project! As the last reminder, always wear protective gloves and make sure the product doesn’t touch the skin as it can be tough to be removed.