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

Flex Seal is an ideal product for a DIY repair project, whether 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, is it really 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. Flex Seal is a liquid rubber sealant product that can be used to seal and protect various surfaces, including concrete

Concrete is commonly used in the basement, where water leakage often happens. 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 spraying 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 dry surfaces. Besides, you may require painter’s tape to limit the area that will be treated.

  1. Spray On the surface

Shake the Flex Seal 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.

Read also: How to Remove Flex Seal in Simple Steps

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. Any cracks or holes in the concrete should be repaired before applying Flex Seal.
  1. Mix the sealant with a concrete patch until the combination reaches a thin paste consistency.
  1. Apply more than one coat and ensure 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.

Depending on the conditions and wear, Flex Seal may require periodic maintenance or reapplication to maintain its effectiveness.

Is The Flex Seal Work On Concrete Walls that Leak Water?

You have discovered 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.

It can be effective for certain applications on a concrete foundation, but its performance may depend on the specific use case and the condition of the concrete.

Does Flex Seal Work on Concrete Walls that Leak Water

Read also: 7 Practical Solutions on How to Clean Water Pipes in Your House

As the last reminder, always wear protective gloves and ensure the product doesn’t touch the skin as it can be tough to remove.

Gravatar Image
John Burns is an experienced author and expert home improvement advice. With years of practical experience in the field authored several informative articles on various aspects related to home improvement, including installation, maintenance, and repair.