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Rust Oleum Leak Seal vs. Flex Seal: Which one is better?

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Leakage is a common problem that people could run into everywhere from inside the house to the vehicle interior and so on. In the case you are unable to come up with an immediate solution, the issue shall worsen as time goes by. Eventually, you will find yourself paying a hefty amount of money to repair all the damages caused by the leakage. This disturbing issue is not strange for most of outdoor lovers who enjoy going long trips on their travel trailer or RV. To avoid such a predicament, it’s best to deal with the leakage as soon as possible. In the case you could use some recommendations, below is a comparison between excellent sealing products: Rust Oleum Leak Seal vs. Flex Seal

Personal preferences vary a lot from one to the other, therefore, there is a diversity of opinions about a particular product. The best sealing solution to someone else could provide a lackluster performance in your case. This is why having a firm grasp on the characteristics of the products is vital if you want to make a logical decision. Never go forward with a purchase until you are certain that it’s good for your needs and requirements. Remember to handle these sealing solutions gently as well, they are chemicals so you can never be too careful with them.

Rust Oleum Leak Seal vs. Flex Seal: Detailed Comparison

Leak Seal and Flex Seal are both rubberize sealants which are designed to fill leaks and cracks. Come in a spray can, it’s quite simple to use them to completely solve the leakage issue once and for all. There is no need for complicated procedures, all you have to do is to cleanse the surface in question then spray them with the sealants. Wait till the liquid is properly dried then you should be able to say goodbye to that annoying leakage. Do keep in mind that these sealing products don’t fare very well against gasoline so keep them away from fuel tank and places like it.

Flex seal spray
Flex Seal is always one of best sealing solution for RV’ers

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Compatible Surfaces

You can utilize either of the sealants on a variety of surfaces such as vinyl, fiberglass, concrete, plastic, wood, etc. As long as you don’t expose them to gasoline or dissolvent chemicals, the coating will stick. By seeping into the surface holes and gaps, the sealants liquid is capable of making the place watertight altogether. Because of that, the seal should prevent further penetration of moisture, slow the degrading of material integrity and keep out the rust too. Another great thing about them is you are able to paint over the sealants with oil based or latex based paints. Make sure that the sealants are dried and you should have no trouble painting them.

Durability

In term of strength, the Leak Seal is the stronger sealant of the two. While Flex Seal can produce a tough seal nonetheless, it’s quite vulnerable to temperatures. This is barely acceptable for outdoor uses.  The Flex Seal rubber might peel off or outright disintegrate when the weather suddenly gets too hot or too cold. This is really inconvenient since it forces you to re apply the whole thing once in a while. The reapplying is not a difficult task though it’s still tenuous and troublesome in the long run. Climbing up and down of a ladder to apply the sealant in high places is quite a hazard to you as well.     

On the other hand, Leak Seal hold up together relatively well in the summer heat and the winter cold. As long as things don’t go to extreme limits, the sealant should stick around for years. Pay attention to it though so you are able to apply a new layer of sealant when the old one is approaching the end of its lifetime. The applying angle needs to be precise or the sealant cannot reach its maximum potential. Beyond that, you should have nothing to worry about the Leak Seal solid performance.

Let’s watch Flex Seal Review to know how well it works!

Time Requirement

The time it takes for the sealants to dry and bond depends largely on the environment around it. In the average case, both Leak Seal and Flex Seal require approximately two to three hours to dry. After that, you can touch it if you like though it’s advised to wait for a day (24 hours) to let the sealants bond to the surface. For maximum effect, people tend to apply two sealants coating in quick succession to completely eliminate the leakage issue. Should you decide to follow that then the minimum time gap between applications is around half an hour.

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Applying Method

While it’s true that you could simply spray the sealants and get it over with, it worth the effort to prepare the target surface beforehand. Debris, rust and water might negatively impact the adhering ability of the sealants so get rid of them first.  You can wipe clean the water and the debris but to remove the rust, you have to sand it off. In the case you are in an enclosed space, make sure that it is well ventilated. Air circulation is essential to help dry the sealants liquid and keep the atmosphere breathable while you are applying.

Section off the targeted surface with painter tapes if needed then starts spraying a moderate amount of sealants. Sweep the place with the can nozzle to evenly spread out the sealant with attention to cracks and holes. Remember to cover the area surrounding these spots as well.

Here is a how-to guide on sealing leaks with LeakSeal product

Final Verdict: Rust Oleum Leak Seal vs. Flex Seal

It’s hard to decide the winner in a competition between Rust Oleum Leak Seal vs. Flex Seal without taking into account your tastes and demands. Leak Seal and Flex Seal are quality sealing solutions that everyone is able to put to good use as long as the situation is suitable. However, it’s best to use Flex Seal for indoor leakages or places that are shielded from the weather. The Leak Seal toughness means you can use it wherever you want though do check up on it every now and then.

And that is most of the thing you should know about these sealant characteristics, pretty straightforward, right? Rust Oleum Leak Seal vs. Flex Seal, It’s not easy to decide the better sealant without enough knowledge about them. But with the help of the information above, now you will be able to cross check your preferences with the sealants qualities. Do it thoroughly and you shall know what sealant is most suit to your needs.  

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