Best RV Roof Sealant for RV Campers in 2023 – Our Reviews And Comparisons

1. Sikaflex-221, Black – Best Overall Rv Roof Sealant

Sikaflex-221 is a high-quality multi-purpose sealant that cures on exposure to atmospheric humidity to form a durable elastomer. Sikaflex-221 bonds well to a wide variety of substrates ideal for a variety of types of RV roofs. It is suitable for making permanent elastic seals of high adhesive strength perfect to get into hard-to-reach RV roof areas and sealing them for good.

What We Like

This RV sealant adheres to surfaces well and is soft enough for flexibility but tough enough not to crack or break. This is a great option for an RV roof to ensure you can seal odd-shaped or hard-to-reach areas on your RV roof. This option can be painted to ensure you keep your RV looking good in the same shade of paint. This RV sealant does not shrink in any way giving you peace of mind that your roof will be secure after use.

What We Don’t Like

You are likely to need strong forearms and grip because this RV roof sealant comes out slower and stiffer than other options. This is not convenient when you are working on your RV camper roof. Since it comes out slower and stiffer, it will stay where you put it and won’t self-level, which is not ideal on your RV roof and can leave it looking unprofessionally finished.

Dicor helps create a watertight seal along the RV roof’s edges, around air vents, vent pipes, air conditioners, and screw heads. It offers excellent adhesion to multiple substrates helpful to adhere to a variety of RV roof components. Dicor improves the ability to continuously seal while remaining flexible. It is UV stabilized to handle your RV roof’s elements.

What We Like

This product self-levels it flattens out, which looks great and allows water to flow easily across your RV roof. This sealant works great on things like RV roof vents and where ceiling fans protrude from the roof. It is meant to be put on in a generous manner, it may not look pretty but it will flow into all necessary nooks and crannies and fill potential leak spots. Dicor is much better than silicone, which tends to crack, leak or peel. This sealant flows smoothly, allowing you to seal your RV roof comfortably.

What We Don’t Like

If you are near the edge of your roof, you need to be cautious as this can level out by the roof edge and drip down the sides, which will leave your RV roof looking poor. This sealant is best for use on horizontal surfaces. Keeping a partially-used tube is tricky, as it can dry out and become useless. You need to make sure the product is not exposed to air after sealing your RV roof.

This universal roof repair sealant works great for a variety of applications. It works wonders on RV roof repairs, a useful and handy product that gets the job done. One pouch goes further than your average caulk option; there is also no need for a caulk gun to apply, making it easy to use. The fact that the bag can be resealed and the balance used later makes it a real value for money.

What We Like

You get a lot of sealant in one bag. You can seal multiple openings on the roof of your camper with just one bag with more leftover. It adheres well to a variety of surfaces. However, it is essential to prepare your RV well before use for success with this product. 

This sealant comes with an applicator tip that does not get clogged up after multiple uses on your camper. The ability to recap the bag and be able to use it again weeks later is convenient.

What We Don’t Like

Despite saying it is self-leveling it does not level or smooth out like other products. It tends to stay in a higher profile making for an uneven finish. It takes quite a bit of effort and technique in squeezing the bag to apply it and it does tend to hurt your hands. This does not make for comfortable working on your RV.

This sealant helps create a seal along a roof’s edges, around air vents, vent pipes as well as screw heads. It is compatible with any roofing material adding to its versatility. It offers excellent adhesion to aluminum, mortar, wood, vinyl, galvanized metal, and concrete, all common RV roof materials. This option has the ability to continuously seal and remain flexible.

What We Like

This sealant comes in the right delivery method in the form of a large caulking gun tube for easy application. It flows just right with good consistency. 

It has just enough leveling to settle into any cracks and seams, but it is stiff enough to stay in place on sealing your RV roof. It dries with a flexible, rubber-like feel, but with great adhesion. Edges seal down hard and it sheds water great, which is what you want for your camper roof.

What We Don’t Like

When working on your RV roof, you would like your sealant to work fairly quickly and cure in good time, but sadly this option seems to take an unnaturally long time to cure. Fumes of this product are also quite strong, and while you will likely be working outdoors on your RV this option will still get to your nose with its strong smell.

EternaBond bonds to virtually any surface, making it ideal for camper roof repairs. Its long shelf life means that you can use the rollover for an extended period with certainty of its effectiveness. The micro sealant makes it a stable sealing option that handles nature and the elements well and provides long-lasting repairs.

What We Like

This option seals your roof without the slightest doubt. Its adhesion is fantastic and provided the surface is cleaned properly, it will stick perfectly every time. It makes the roof look clean and tidy again with its neat finish. 

One roll of this sealant really goes a long way and can help you seal most of your RV roof in one go. This sealant bonds to a variety of surfaces ideal for all areas of your camper roof. A micro sealant is a more stable option that allows for long-lasting repairs and handles the elements well.

What We Don’t Like

Be careful with the alignment of this sealant. Once it touches anything, it is almost impossible to reposition. The key is to take your time and make sure the surface is perfectly clean before applying this sealant and try to avoid getting any air trapped or you will have a rough finished RV roof. It does not work well to go around vents –  the curves make it too messy so it may not work well for your full camper roof.