Eternabond Tape vs Flex Seal Tape – Which Is Better?

Eternabond Tape vs Flex Seal Tape
Eternabond Tape vs Flex Seal Tape

Eternabond tape and Flex Seal tape are two of the most sought-after tapes used by thousands of RVers all over the world. Both are known for their excellent adhesive properties and are mainly used to prevent leakage on RVs.

But how do these two tapes stack up against each other? You may go through a dilemma if you are purchasing a sealant tape for the first time. In this article, we intend to compare these two widely used tapes hereinafter.

From price to adhesiveness, we will be putting them head to head in different categories. By the end of this article, you will be able to make an informed purchase decision.

Eternabond Tape vs Flex Seal Tape

Below is a detailed comparison between the Eternabond and the Flex Seal tapes.

Comparison Table

Features Eternabond Sealant Tape Flex Seal Tape
Waterproof Yes Yes
UV-resistant Yes No
Color options White Black and white
Price Moderate Low

Eternabond Tape

Manufactured by Eternabond, this sealant tape was introduced quite a long time ago and has surely stood the test of time. It is a go-to choice for many RVers and homeowners. Let’s take a closer look at it and see what makes it so special.

Performance

First things first, the Eternabond sealant tape does incredibly well what it is supposed to do- stop water leakage. No doubt, travelling in a motorhome is fun and economical. However, water leakage is among the most common problems associated with RVs and can kill all the fun.

Water leakage can lead to rotted wood and cause severe structural damage to the interior of your motorhome. This is where the Eternabond sealant tape comes in handy.

The Eternabond sealant tape can quickly and permanently stop leakage in your motorhome or any solid surface. It comes with a highly sticky material on its back that is designed to stick to virtually every roof or solid surface, be it Hypalon, EPDM, or some coated metal.

Regardless of the material of the RV’s roof, this sealant tape has got you covered. Silicone is the only material that it does not stick to properly. So, if you want to repair a surface made of silicone, you may need to look elsewhere.

The Eternabond sealant tape comes in a variety of sizes. The options include 1.5-inch, 4-inch, 6-inch, 12-inch, and 48-inch. No matter how big or small the water leakage is, the Eternabond sealant tape can handle it.

Build Quality

The UV resistance of the Eternabond sealant tape has impressed many users. If you have used a sealant tape before, you’d know that most of them cannot withstand sunlight and come off after a few weeks.

Fortunately, that is not the case with this tape. It works well even under direct sunlight, making it an excellent choice for leakage on RV roofs and outdoor uses.

Eternabond tape outdoor use

In addition to that, since the Eternabond sealant tape is waterproof, it performs well in all weather conditions. Unlike most sealant tapes on the market, it can be used even during winters. However, the manufacturer recommends keeping it warm prior to installation.

Another great thing about the Eternabond sealant tape is that it is super easy to use. It is covered with a plastic layer, which you can peel off easily.

Once you have removed it, it is ready to use. And yes, once you have applied it to the surface, make sure to press it firmly. This will keep it in place.

Versatility

Furthermore, the excellent versatility of the Eternabond sealant tape puts it at the top of the list of all sealant tapes. You can use it to support other objects as well, such as a wooden box. Many RVers use it to hold the wires on the roof.

Lastly, the Eternabond sealant tape comes in white color, which doesn’t fade over or turn yellow over time. While a sealant tape helps you prevent water leaks, it is important to choose a tape that won’t ruin the overall look of your RV.

The Eternabond sealant tape comes at a relatively higher price. However, its superb construction and adhesiveness mean that the cake is worth the candle. All in all, the Eternabond sealant tape is a perfect choice for anyone looking for quality sealant tape.

Flex Seal Tape

Next, we have the Flex Seal tape. It is manufactured by Flex Seal and is among the most successful products by the company. It is a luxury alternative to liquid adhesive materials and welding. Let’s discuss its features in detail.

Flex Seal tape

Performance

One side of the Flex Seal tape is made of waterproof material, while the other side is highly adhesive and sticks to a damaged area that you want to repair. Like the Eternabond tape, the Flex Seal tape is also extremely sticky and retains its stickiness.

Versatility

When it comes to versatility, the Flex Seal tape is head and shoulders above its competitors. It can be used on pretty much every surface type that you can think of.

People have even used it to repair PVC pipes, and it always works like a charm. This makes it a great investment for every homeowner.

Having said that, it is recommended to heat the Flex Seal tape before applying it to fabric or porous surfaces. This way, the sticky material will loosen up a bit and will stay better on the surface.

A blow dryer will work fine for this purpose. And yes, press it with your hands or some object after applying it.

Build Quality

As far as the build quality is concerned, the Flex Seal tape is made of sturdy materials and will surely stop the leakage permanently. It is seen that this sealant tape is capable of maintaining its adhesive properties even in harsh weather conditions.

It does not break down or lose its adhesiveness when soaked in water. Buy it, and rest assured that it won’t betray you when you need it the most.

The premium build quality of the Flex Seal tape makes it a great choice for people who do not want to compromise on the look of their RV. And yes, you get two color options to choose from, i.e., black and white.

Although the Flex Seal tape works well under sunlight, too, it is pertinent to mention that it is not UV-resistant.

The affordable price is the best selling point of the Flex Seal tape. It is available at a surprisingly low price, making it an ideal option for people seeking high-quality and affordable tape.

The Bottom Line

The Eternabond and Flex Seal tape are the two best-selling sealant tapes on the market. Both have excellent adhesiveness and maintain it in all weather conditions.

However, the versatility and reasonable price make the Flex Seal tape the clear winner. Furthermore, it is available in two colors, so you can better blend it with the surface.

Leave a Comment