This article may contain affiliate links where we earn a commission from qualifying purchases. The images and content on this page may be created by, or with the assistance of, artificial intelligence, and should be used for entertainment and informational purposes only.

Key Takeaways

  • Selecting the right sealant is crucial for maintaining a leak-free of entire RV roof.
  • Popular options are diverse and cater to different needs, including Dicor Lap Sealant.
  • Understanding the features of each option helps RV owners make informed decisions.

Protect your RV from the elements. Uncover the most effective sealant for your RV's roof and ensure a leak-free RV roof journey ahead!

The best roof sealants for RV roofs are Dicor 501LSW-1 Lap Sealant, EternaBond RSW-4-50 RoofSeal Tape, ProFlex RV Flexible Sealant, Geocel Pro Flex RV Flexible Sealant, and Liquid Roof RV Roof Coating. These top-rated products provide exceptional protection and durability for your RV's roof.

As an avid RVer with a knack for tackling every challenge that comes my way, I delved deep into the world of the best RV roof sealants. Armed with experience and insights from experts, I embarked on a mission to find the ultimate solution. Hours of research, countless discussions with fellow RV enthusiasts, and testing various products led me to uncover the best roof sealants for RV roofs. With these top-notch options, you can bid farewell to RV roof leaks and roof worries.



Best Sealant For RV Roof

When it comes to maintaining your RV, one of the crucial aspects is ensuring your roof remains in good condition. A well-maintained roof is not only essential for a comfortable RVing experience but also for preventing a costly RV roof repair.

Choosing the best sealant for your entire RV roof plays a significant role in the longevity and waterproofing of your vehicle. This article aims to provide RV owners with an understanding of the top RV sealant options available to protect their investment and ensure a leak-free roof.

There are numerous sealants on the market that cater to the diverse needs of RV owners. Each sealant offers unique features and benefits, making it a vital decision point for individuals who want to maintain the integrity of their best RV roof.

Here's a table comparing the features of the best sealants for RV roofs:

Sealant Model Durability Application Flexibility Waterproof UV Resistance Drying Time
Dicor 501LSW-1 Lap Sealant High Caulk Tube Flexible Yes Excellent 24-48 hours
EternaBond RSW-4-50 RoofSeal Tape Very High Tape Roll Highly Flexible Yes Outstanding Instantly
ProFlex RV Flexible Sealant Moderate to High Caulk Tube Flexible Yes Good 24 hours
Geocel Pro Flex RV Flexible Sealant High Caulk Tube Flexible Yes Good 24-48 hours
Liquid Roof Best RV Roof Coating Very High Liquid Highly Flexible Yes Excellent 48-72 hours

1. Dicor 501LSW-1 Lap Sealant

Dicor 501LSW-1 Lap Sealant
Dicor 501LSW-1 Lap Sealant

The Dicor 501LSW-1 Lap Sealant is a top pick in the market for the Best RV roof sealants, designed to provide long-lasting protective sealant for your RV's rubber roof coating.


With a generous 10.3 oz. volume per tube, this product is your go-to solution for sealing and protecting your RV roof. Its pristine white color blends seamlessly with any roof surface, delivering a clean and polished look. It is designed specifically for TPO, EPDM, and PVC roofing membranes and ensures a secure and durable bond.

Versatile and reliable, this sealant is compatible with a wide range of materials. It's built to withstand the harshest weather conditions, UV rays, and discoloration, providing you with long-lasting and dependable protection for your RV roof.


Dicor 501LSW-1 is a flexible sealant that creates a watertight seal on your RV's rubber roof coating. Its self-leveling sealant formula allows for easy application and ensures the sealant covers all necessary surfaces. Many users report that the sealant is durable and maintains its protection even in extreme weather conditions – including snow and heavy rain.

What Sets It Apart

  • UV Resistant: The sealant is designed to resist UV rays, which helps to prevent discoloration and deterioration.
  • EPDM rubber roof Specific: Designed specifically for use on EPDM rubber roofs, ensuring excellent compatibility and performance.
  • Ease of Application: The self-leveling sealant formula makes it easy to apply RV roof sealant and achieve a smooth, consistent seal.

Recent Updates

While there haven't been any recent updates to the Dicor 501LSW-1 formula, the company continuously invests in research and development to improve its product offerings. So, you can expect that this sealant will remain at the forefront of the best RV roof sealant technology.


  • Creates a watertight seal that endures harsh weather conditions
  • UV-resistant, preventing roof discoloration and deterioration
  • Easy to apply and levels itself for a smooth finish
  • It adheres well to a variety of materials, including aluminum, wood, and vinyl.


  • Limited to white color, which may not be suitable for all RV aesthetics
  • It can take time to cure fully, especially in colder conditions

Who Should Buy It

Dicor 501LSW-1 Lap Sealant can be best suited for RV owners with RV rubber roofs made of EPDM roof coating, TPO, or PVC membranes. If you're looking for a sealant that offers easy application, UV resistance, and durability, this product should be on your radar.

Where To Buy It

You can purchase the Dicor 501LSW-1 Lap Sealant through their official website or from trusted retailers such as Amazon.

2. EternaBond RSW-4-50 RoofSeal Sealant Tape

EternaBond RSW-4-50 RoofSeal Sealant Tape
EternaBond RSW-4-50 RoofSeal Sealant Tape

This section will discuss in detail the EternaBond RSW-4-50 RoofSeal Sealant Tape, providing a comprehensive overview of its specifications, performance, and other notable aspects. Read on to see how this product can benefit your RV roofing needs.


The EternaBond RSW-4-50 RoofSeal Sealant Tape comes in white color with a 50-foot length and a 4-inch width. Its total thickness is 35 mil, and it is designed to provide a highly efficient and long-lasting solution for sealing RV roofs. The tape is UV resistant, making it ideal for use in sunny weather conditions.

  • Length: 50 feet
  • Width: 4 inches
  • Thickness: 35 mils
  • Color: White
  • UV resistant


With its high elongation factor, this sealant tape allows flexibility to expand and contract with changing weather conditions. Its strong bond makes it suitable for sealing a wide range of surfaces, such as seams, air vent pipes, antenna mounts, and more.

Its waterproof feature ensures excellent protection against water leaks and performs well in various climatic conditions.

What Sets It Apart

EternaBond RSW-4-50 RoofSeal Sealant Tape provides users with several key advantages over traditional liquid best RV roof sealants:

  • Easy Application: Simply peel off the backing and apply it to clean surfaces without any additional tools or mess.
  • Versatility: Ideal for use on various roofing materials, such as EPDM, TPO, metal roofs, and vinyl.
  • Long-Lasting: Provides a durable, weatherproof seal that can endure extended exposure to harsh weather.

Recent Updates

There have been no recent updates for this specific product at the moment. However, the packaging may vary slightly as the brand continuously improves its customer experience.


  • Quick and simple installation process
  • Suitable for a variety of surfaces, including vent pipes and antenna mounts
  • Creates a waterproof seal to prevent roof leaks
  • UV resistant for extended durability
  • Adapts to changing weather conditions


  • It may not adhere effectively to some surfaces without proper surface preparation.
  • It can be difficult to remove or reposition once applied

Who Should Buy It

The EternaBond RSW-4-50 RoofSeal Sealant Tape can be perfect for you if you’re an RV owner looking for a reliable and easy-to-use sealant solution that can be applied to various materials. Whether faced with cracks, roof leaks, or just seeking additional roofing protection, this tape offers a dependable, long-lasting sealing option.

Where To Buy It

You can purchase EternaBond RSW-4-50 RoofSeal Sealant Tape on Amazon.

3. ProFlex RV Flexible Sealant

ProFlex RV Flexible Sealant
ProFlex RV Flexible Sealant

The ProFlex RV Flexible Sealant is a top-tier sealant that provides impressive waterproofing and protection from the elements of your RV roof. This versatile product is formulated for compatibility with a wide range of materials, making it perfect for use on everything from metal roofs and wood to fiberglass roofs and acrylic surfaces.


The ProFlex RV Flexible Sealant by Geocel offers crack resistance, exceptional flexibility, UV resistance, adhesion to damp surfaces, and mildew resistance. Choose from various colors to match your RV's aesthetics. It's a reliable choice for long-lasting protection.


ProFlex RV Flexible Sealant offers top-notch performance in safeguarding your RV roof from water damage and other environmental threats. The product's formula allows it to adhere seamlessly to various surfaces, including metal, wood, concrete, and even when slightly damp.

This sealant's UV-resistant quality assures protection against harsh sun rays, while its flexibility helps prevent cracks and RV leaks even under extreme weather conditions.

What Sets It Apart

Not all RV roof sealants are built the same, and the ProFlex RV Flexible Sealant stands out due to its unique characteristics:

  • Versatility: It works with an array of materials such as metal, wood, fiberglass, acrylic, TPO, and EPDM rubber roofs.
  • User-friendly: This sealant is resealable and can be applied over itself, making RV roof maintenance a breeze.
  • Eco-friendly: ProFlex RV Flexible Sealant is paintable and offers low VOC emissions, which is beneficial to the environment.

Recent Updates

Recently, Geocel has made improvements in the ProFlex RV Flexible Sealant formula, ensuring better adhesion and durability for increased protection of your RV's roof.


  • Excellent waterproofing capabilities
  • Maintains flexibility and crack resistance over time
  • Easy application and cleanup
  • Blends with the roof's color, keeping a clean appearance
  • Protects against sun damage and mildew growth


  • Limited availability in physical retail stores
  • It may require reapplication every few years, depending on usage and weather conditions.

Who Should Buy It

The ProFlex RV Flexible Sealant is a must-have for you if you’re an RV owner who prioritizes the longevity and good looks of your vehicles. Its versatility, performance, and user-friendliness make it a worthwhile choice if you’re looking to protect your RV's roof from leaks and the elements effectively.

Where To Buy It

You can purchase ProFlex RV Flexible Sealant through various online retailers such as Amazon or directly from Geocel's official website. It's always best to buy from official or reputable sources to guarantee authenticity and the best value for your investment.

4. Geocel Pro Flex RV Flexible Sealant

Geocel Pro Flex RV Flexible Sealant
Geocel Pro Flex RV Flexible Sealant

The Geocel Pro Flex RV Flexible Sealant is an excellent choice for protecting your RV's roof from damage, ensuring a waterproof, long-lasting coating. This eco-friendly product is suitable for a variety of RV roof materials, offering strong adhesion and UV stabilization.


The Geocel Pro Flex Seal Liquid Rubber RV Flexible Sealant is a versatile choice for various surfaces, including fiberglass, aluminum, EPDM, and rubber. It's available in multiple colors and comes in a 10 oz. Cartridge. This sealant is known for its crack resistance, exceptional flexibility, excellent adhesion, and UV resistance.

Additionally, it is paintable and resists dirt pick-up, ensuring a clean, professional finish and easy maintenance.


With its superior adhesion properties, the Geocel Pro Flex Seal RV Flexible Sealant can even be applied on damp surfaces, providing an effective and durable coating that protects your RV roof from water damage, mildew, and mold. It also works well as a quality RV roof sealant on rubber and EPDM materials, ensuring a strong, weatherproof bond that stands up to various weather conditions.

What Sets It Apart

What makes this RV roof sealant stand out is its eco-friendly formula and its ability to be applied on various surfaces, including fiberglass, EPDM, rubber, and aluminum. The Pro Flex seal sealant is also resealable, meaning it can be applied over itself, making long-term roof maintenance much easier.

Recent Updates

While no specific recent updates have been found, the Geocel Pro Flex RV Flexible Sealant maintains its top position on the best RV Caulks list in 2023, proving its ongoing effectiveness and popularity.


  • Eco-friendly formula
  • Exceptional flexibility and crack resistance
  • Suitable for various surfaces
  • Weatherproof and UV resistant
  • Paintable finish
  • Easy to apply and clean up


  • Some users may find it challenging to apply on vertical surfaces
  • Requires a caulking gun for application
  • It may require multiple layers for optimal performance

Who Should Buy It

The Geocel Pro Flex RV Flexible Rubber Coating Sealant can be an ideal choice for you if you’re an RV owner who wants a durable, eco-friendly, and versatile sealant for your roof. If you have a roof made from EPDM, rubber, aluminum, or fiberglass, this sealant is an effective solution for protecting your investment and ensuring a long-lasting, weatherproof barrier.

Where To Buy It

You can purchase the Geocel Pro Flex RV Flexible Rubber Coating Sealant on and through various RV supply stores. Always buy from a trusted seller to ensure you're getting an authentic and high-quality product.

5. Liquid Roof RV Roof Coating

Liquid Roof RV Roof Coating
Liquid Roof RV Roof Coating

Liquid Roof is a popular RV roof coating that provides reliable protection and durability for your RV's rooftop. Dive into the details and discover if Liquid Roof RV Coating is the ideal flexible RV roof coating for you.


Liquid Roof is a high-quality EPDM-based liquid rubber coating that offers a seamless and waterproof barrier for your RV's roof. It can adhere to various roofing materials, such as metal roofs, fiberglass, vinyl, and rubber roofs. Application is easy, requiring just a single coat with a coverage rate of approximately 42-46 square feet per gallon.


This best RV roof sealant is known for its exceptional waterproofing properties and excellent weather resistance. It can withstand harmful UV rays, temperature fluctuations, and harsh weather conditions. This makes Liquid Sealant Rubber Roof an ideal choice for those who frequently embark on RV trips in various climates.

What Sets it Apart

Liquid Roof sets itself apart from other RV roof coatings through its:

  • EPDM-based formula: Engineered for long-lasting protection and durability, suitable for different roofing materials.
  • Ease of application: A single coat is adequate, making the application process straightforward and time-effective.
  • Environmental friendliness: The product is low in VOCs, ensuring minimal environmental impact.

Recent Updates

In response to customer feedback, Liquid Rubber Roof has improved its formula by providing better adhesion and increased temperature tolerance. These updates have further enhanced the product's overall performance and reliability.


  • Excellent waterproofing and weather protection
  • Strong adhesion to various roofing materials
  • Easy application process
  • Environmentally friendly


  • Relatively higher cost compared to other coatings
  • It may require the use of additional primer on very smooth surfaces

Who Should Buy It

Liquid Roof RV Cool Roof Coating can be an ideal choice for you if you’re an RV owner who:

  1. Seek long-lasting protection and durability for your RV roofs.
  2. Prioritize ease of application and minimal RV maintenance requirements.
  3. Prefer an environmentally friendly product.

Where To Buy It

The Liquid Rubber Roof RV Roof Coating can be purchased from the official Liquid Roof website or other reputable online retailers such as Amazon. Always buy from authorized dealers to ensure the authenticity and quality of the product.

Tips and Techniques for Mastering the Art of RV Sealant Application

In this section, we will analyze tips and techniques for applying RV roof sealants effectively.

Prepping for Success

Before diving into applying the RV sealant to your RV roof, it's crucial to prepare the surface for optimal adhesion and longevity. Start by cleaning the roof thoroughly and removing any dirt, debris, or old RV sealant residue. A gentle scrub with mild detergent and water should do the trick. Rinse it well and let it dry completely.

Choosing the Right Tools

Having the right tools on hand makes all the difference in achieving a smooth and professional RV sealant application. Here are a few essentials to have in your arsenal:

  • RV Caulk Gun: A high-quality caulking gun helps control the flow of the sealant and ensures even distribution.
  • Putty Knife: Use a putty knife to remove the old sealant, smooth out the newly applied sealant, and create clean roof edges.
  • Clean Rags or Disposable Gloves: Keep some clean rags or disposable gloves handy for wiping away the excess sealant and keeping your hands clean.

Applying the Sealant

Now, let's get down to the nitty-gritty of applying the sealant. Follow these steps for a successful application:

  • Cut the nozzle of the sealant tube at a 45-degree angle. Start with a small opening and increase it if necessary.
  • Load the tube into the caulking gun, making sure it's secured in place.
  • Begin applying the sealant in a steady and controlled manner. Use even pressure on the caulking gun to ensure a consistent flow.
  • For joints or seams, apply a bead of sealant directly along the area, making sure to cover the entire roof length.
  • Smooth out the applied sealant using a putty knife. This step helps create an even surface and ensures better adhesion.

Pro Tips for a Flawless Finish

To take your sealant application to the next level, consider these pro tips:

  • Work in small sections: Applying sealant in manageable sections allows you to maintain control and prevent the sealant from drying out before you can smooth it.
  • Practice makes perfect: Before tackling the actual job, practice your application technique on a scrap piece of material to get a feel for the sealant flow and your hand movements.
  • Be mindful of temperature: Sealant application is best done in moderate temperatures. Extreme heat or cold can affect the consistency and drying time of the sealant.
  • Don't rush the drying process: Give the RV sealant ample time to dry and cure before exposing it to the elements. Follow the manufacturer's instructions regarding drying time.

These tips and techniques can help you achieve a seamless and long-lasting sealant application on your entire roof length. Remember, practice, patience, and attention to detail are the keys to a job well done!