Best Roof RV Sealant Reviews 2020

The thing with RV roofs is that you would not be able to detect the problem right away even if you do random of inspection. What will happen is that you will end up paying a high cost for the water damage.

You should realize that water can damage your RVs quickly without you realizing it. It is mandatory for you to do regular checkups. The important thing is that you can avoid damage to prevent major problems to take in place.

Check out the best RV Roof Sealant in the marker, so you’ll have an idea what to purchase in case you need it. There are many brands in the market, but only a few can deliver positive results.

Best RV Roof Sealants Review

DICOR 501LSW-1 Self-Levelling Sealant

51C25rmQOlL 1The Dicor 501LSW-1 is considered when the best RV Roof Coating, especially on horizontal surfaces. This sealant is designed for horizontal applications like in roof surfaces and fiberglass. You can also use it on TPO and rubber.

If you have a problem with your roof edges or vent covers, you can use this tight sealant for maximum sealing. It is flexible due to the UV-stabilized feature. You are ensured that there will be no deterioration or discoloration on the surfaces.

It contains 10.3oz in one tube. The good thing about this coating/sealant is that you can use it for variety of applications and surfaces. Another good thing about this sealant or coating is that it has a three-part-roofing system.

The EPDM Lap Sealant can provide a secure seal on your roofs edges. Even the screw heads can be screwed completely. It is also compatible with EPDM as well as with TPO sheeting. It has also a strong adhesive to aluminum and other materials. You can use it for wood, mortar, and vinyl as well.

This Dicor Self-Levelling Sealant is best for aftermarket use. In fact, it is one of the products that have the highest volume sold. People like the fact that it does not stain the roofing surface after application.

The HPAS free formula makes it in-demand for users. It complies with the strict demand of industry for a cleaner and safer environment.

If you would like to install a vent, it will work well because it can provide a tight seal. Users find this very effective both for cold and warm weather. They just noted that you need to apply it thick to ensure proper sealing.

Dicor 501LSW-1 Self-Leveling Lap Sealant, 4 Pack
6,284 Reviews
Dicor 501LSW-1 Self-Leveling Lap Sealant, 4 Pack
  • Helps create a seal along a roof's edges, around air vents,...
  • Compatible with any roofing material
  • Offers excellent adhesion to aluminum, mortar, wood, vinyl,...

EternaBond RSW-4-50

418Ktkg41HLThe EternaBond RSW-4-50 is the best roof seal to use for sunny or warm weather. There is no complication in using this product because you just only need to do minimal surface preparations to start using it.

You can use this on all kinds of roofs. The Roof Seal technology has devised a UV stable backing that is available in three colors like White, Black, and Gray. The technology allows you to do a one-step repair system.

The EternaBond RSW-4-50 can create an air tight barrier that requires no additional sealing. It is also waterproof and prevents moisture from creeping in. The good thing about it is that it is flexible enough to work even with a temperature as low as -70 degrees Fahrenheit.

The MicroSealant Technology permanently bonds different surfaces, even those that are hard to bond like EPDM and PVC. Aside from these materials, it can also work effectively on Hypalon and CPE.

You can use this sealant to seal roof joints seams and tears. It will also work great on copings, gutters, and skylights. If you need to repair and restore roofs, this sealant is an excellent companion.

The 100% solids formation is another feature to boast about with this sealant. It is made of synthetic resins and thermoplastics with a built-in primer for added efficacy. It is bonded to a UV stable backing to ensure durability.

It will not harden even if you expose it to different weather conditions. Aside from this, the MicroSealant is protected by a silicon polymer that is easy to remove.

EternaBond RoofSeal White 4' x50' MicroSealant UV Stable...
6,963 Reviews
EternaBond RoofSeal White 4" x50' MicroSealant UV Stable...
  • MULTI-USE: Perferct for use on metal buildings, trailer/RV...
  • NO ADDITIONAL SEALING REQUIRED: Aluminum backing, combined...
  • DURABLE SURFACE: Industry leading one step repair system...

Heng’s Rubber Roof Coating

41RwdrQp3TLThe all-new Heng’s Rubber Roof Coating is perfect the best RV Sealant in the industry when it comes to its highly-engineered composition. It is specifically designed for rubber roof surfaces. It also works well in sealing air vents.

It is a non-asphalt roof coating that is made with long fibers and pigments. You can also benefit from its non-drying resins. It is thick and made from aluminum fibered colored coating that can conform to different wall colors and protect it from harsh environmental conditions.

It can also protect your roof from ultra-violet rays from the sun, at least by 80%. Aside from this, it can also reduce room temperature by 15%. The Heng’s roof sealant can protect aluminium and metal type of roofing. You can purchase one gallon of this coating to cover 80-100 square feet of surface area.

You can use this roof coating for asphalt roof shingles as well as galvanized steels. If you have polyurethane material, Heng’s Rubber Roof Coating will also work great on it. It acts by reflecting and protecting your roof from the UV rays of the sun.’

The exterior durability is outstanding because it prevents the sun to make a major damage on your roofing system. It can also be expanded and contracted with the roof. You will notice that your roof won’t have cracks and it won’t be prone to impact.

In terms of adhesion to rubber, it can work efficiently without prior surface preparations. Another feature that has gained praises from the users is its non-polluting and non-toxic composition.

Heng's Rubber Roof Coating - 1 Gallon
1,996 Reviews
Heng's Rubber Roof Coating - 1 Gallon
  • Designed for use over RV rubber roofs, at seams and tears...
  • It is UV resistant and expands and contracts with roofs
  • Resists cracking and withstands impact, non-polluting and...

Flex Seal Liquid Large Sealant

718d4jpCSWLThe Flex Seal Sealant is made as a liquid rubber that is used to coat and stop leaks from different materials. It is considered as one of the most powerful sealants in the market. It has the ability to lock out moisture and water.

When it comes to versatility, you will love the consistent thick liquid you can brush on surfaces because the tone is evenly applied. You can just pour it directly into cracks or you can dip items on it.

The good thing about this sealant is that its flexibility. It is flexible enough to turn into a durable water seal that will lock out water even moisture. It will prevent the oxidation process on your roof.

The Flex Seal Liquid Large Sealant will expand and contracts upon application. You also have the choice to paint on it. Its anti-corrosive and rust properties make it usable even in rainy weather condition. Aside from it, it can also resist mildews and mold from building.

You can use this sealant on your basement leaks and in showers. If you have cracked foundations, it can effectively seal it to prevent water seeping through the cracks. It adheres to variety of surfaces so you need to spend a lot if you have some sealing tasks to accomplish.

Aside from this, if you are a hobbyist, then you will find Flex Seal sealant to be helpful. If you have a problem on slippery tools, you can just dip it in the sealant to come up with a no-slip mechanism.

Make this sealant as part of your home repair system as well as for arts and crafts.

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Liquid Roof RV Roof Coating

51gfz5iA9LThe Liquid Roof RV Coating is also considered as the best RV Roof Sealant because of its EPDM Liquid Rubber that is applied using a single coating. It is a multi-purpose liquid coating that is submerged in a waterproof membrane.

This liquid coating is primarily used for the rejuvenation of different RV roofs. It has perfect adhesion to EPDM rubber roofs and other materials used on roofs. It is also flexible and resistant to freezing.

You can choose the color you would like to use since it is water-based and there are no toxic solvents in the contents of this coating.

The Liquid Roof Coating can be used up to 100 feet squared of surface area per coat. You can also use 2-3 heavy coats using this Roof coating.

You should avoid exposing it to direct sunlight during the application process. You can best apply during mornings and evenings. It is also recommended to use TPO Primer on TPO roofs to avoid unnecessary changes.

You should remember that TPO is made from a plastic sheet membrane so you can easily spread it around using a good roller. It is best if you will pour only an ample amount and spread it using a roller to avoid wasting the coat.

If ever you will see corrosion, you can use 2 heavy coatings of MetalSafe Sealant as your primer to solve the problem. The product will stay soft and flexible during the curing process. You just need to wait for it to get dry before applying another coat to ensure that all materials are curd underneath.

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Best Roof RV Sealant Buying Guide

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Choosing the best RV Roof Sealant takes enough knowledge on how it is being used the materials that you can use it on. If you have a RV roof, you need to ensure that it will last for a long period of time.

You might not give enough attention to your roof. One of the best ways of protecting your RV roof is through the application of coat.  Prior to application, you need to consider some things.

Factors to Consider in Buying a RV Roof Sealant

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Roof Material

This is one of the most common considerations that you need to take when buying a RV roof sealant. Roofs can be made in different materials depending on the structure of the building or the house

1) Rubber – Most houses are built from this material because this is common among constructions of RV roofing system. Rubber roofs can take different forms. It can either be EPDM roof or TPO RV roof. Both of these types have different maintenance needs.

2) Fiberglass – This type of roof is much harder to touch and it is also difficult to find compared to the rubber RV roofs. Aside from they are heavier; they also have higher price tags. The good thing about these roofs is that they only need minimal maintenance.

3) Aluminum – This type of roof is the hardest to find and the rarest of all. In fact, there is low probability that you’ll find a RV aluminum roof around you. This type of material is similar to fiberglass due to its weight. Despite of its rare existence on RV roofing system, it is very easy to maintain.

Are There Leaks?

If you are going to inspect for any leaks, remember that your roof should be dry. It is better if you check the entire roof for any problems. In this case, it will be easier to see. If you suspect a hole, there is a high probability that there is a hole on your RV roof.

You might even see some elements that may contribute to the damage on your roof. It is recommended for you to check if there are any rings on the roof. These are good indicators that there are leaks.

Most of the time, there are discolorations in the areas or spots where leaks are. Check for rings of dirt, and later on you will be able to see leaks on that area.

In this case, you need to make sure that your rood is dry before you apply your coating because the coating will just be diluted by the water and it will take time to dry.

Why Apply RV Roof Coating?

EPDM coatings have several benefits and advantages. It can give protection against the harmful UV rays from the sun. Aside from this, you can deal with ponding water easily through RV roof coatings.

One of its best features is its ability to resolve ponding water even if it rains after your application. It is applicable as long as the temperature is more than 55 degrees Fahrenheit. However, it is still recommended to apply the EPDM roof coating on a nice warm weather.

Also, you don’t need to apply a primer anymore. Just ensure that the surface is clean so you can directly implement the coating on it. Much time and electricity will be saved because you only need to apply a single coating.

The EPDM is still flexible even after being cured. It is a good indicator that it can hold almost anything in different environmental conditions. This is also applicable for freezing temperatures. Say good bye to ugly cracks for this reason.

Easy Application

It is suggested to buy a sealant with a house-paint like consistency because it is easier to apply it on your RV roof. Also, you will need only few tools like the paint roller and squeegee. When you find it simpler to use, the coating will turn out smooth and flawless.


When you go for camping, the RV roof can get really blazing hot. This is why your coating should have a good level of heat flux reduction to avoid it in getting hot. It is also important for it to possess right insulation.

The coatings can reduce the heat inside the cabin because the heat transfer is lessened in between coats. So, if you are planning for your next camp trip, consider applying a good roof sealant to save yourself from the harsh heat the sun can strike on your roof.

Aside from this reason, a good RV roof coating can lessen the draw on electricity to provide power to your RV’s AC unit. You are able conserve energy in this case.

Curing Time

The curing time varies from one product to another. It just means the time the coating will solidify and ready to be applied. In terms of the coating, it can take up to seven days while others can only take a shorter time to solidify.

In warm weather, the process of curing is speedier compared to rainy season. It is recommended to cure your RV roof during summer or warm reason.

Different RV Roof Applications

RV Roof Caulking

It is important for you to maintain your RV roof. One of the most viable way to ensure the protection of your roof is through the roof caulk. You should at least apply a RV roof Caulk once or twice a year to properly seal your roof.

It can prevent water from seeping in through the RV so the equipment in it will be entirely secured. You can also use it for roof vents and skylights.

RV Liquid Roof

Rubber is the most common material for RV roofs, thus, it only requires minimal maintenance. The important thing is for you to have the right tools and materials. It is normal for the protective layer of your RV roof to wear over time, so you can apply a liquid coating to bring it back to its old shine.


There are many RV roof sealants in the market that makes it more challenging to find the best RV Roof Sealant. You need to consider your needs and the type of RV roofing you have before you decide on the type of sealant to use.

Aside from this, you also need to consider some factors like the insulation, curing time, and the material of the roof. Determining these factors will lead you to the right RV Roof Sealant.

If you suspect leaks in your RV roofs, consider buying the best roof sealant to prevent the damage from getting worse so you can enjoy your next camping trip.

Last update on 2021-09-19 at 06:27 / Affiliate links / Images from Amazon Product Advertising API. More info.