Flex Seal is an ideal product for a DIY repair project, whether outside or inside your house. This rubber sealant coating claims not to peel or crack during colder days, not drip or sag during warmer seasons, and to prevent corrosion.
However, you may ask, does it really work effectively on concrete? Find out 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. Using this item, you may perform leak repair from the outside or inside of the basement. Here are three steps you can fix leaking basement concrete with spray-on Flex Seal:
- 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.
- Clean out the affected area’s surface
Remove any dust or dirt on the affected area’s surface. If the accumulated dirt is difficult to eliminate, use a cleaning solution and damp cloths to wipe it down.
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.
“For best results, ensure the surface is clean, dry, and free of grease, oil, and dirt. Use a mild detergent if necessary to clean the surface.”
- Spray On the surface
Shake the Flex Seal properly for a minute or so. Then, locate it eight to twelve inches 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.
“Apply several even coats instead of one thick coat to build up a durable, flexible rubber barrier.”
Read also: How to Remove Flex Seal in Simple Steps
Flex Seal’s Efficacy on Concrete
| Pros | Cons |
|---|---|
| Easy to apply | May require multiple coats |
| Effective on various surfaces | Periodic maintenance needed |
| Durable and flexible | May not be a permanent fix for major issues |
Does Flex Seal Work on a Concrete Foundation?
Another common question about this sealant coat is how long Flex Seal lasts. The answer 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:
- Make sure the area you’re working on is clean. Any cracks or holes in the concrete should be repaired before applying Flex Seal.
- Mix the sealant with a concrete patch until the combination reaches a thin paste consistency.
- Apply more than one coat and ensure the area is covered as much as possible.
- Smooth out any excess of mixed paste to achieve an even finish.
- Wait for the sealing to dry completely, at least for 24 hours.
“For enhanced durability, consider using Flex Seal Liquid in conjunction with a concrete patch product. This combination can provide a more robust and long-lasting seal.”
Flex Seal may require periodic maintenance or reapplication to maintain its effectiveness depending on the conditions and wear.
Is The Flex Seal Work On Concrete Walls that Leak Water?
You have discovered that the sealant product works on concrete, but does Flex Seal work on water pipes? Yes, it does. You can apply it directly to the water-leaking pipe 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.
“For areas prone to heavy water exposure, using Flex Seal as a temporary solution while planning a more permanent repair can be effective.”
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.
