Is Geocel Pro Flex RV Sealant Good To Reseal RV Roof?

Anyone who owns or has some experience with RVs knows that many folks face issues related to their maintenance, especially when sealing the roof. The question that often arises is which product is best to reseal the roof in case of leakages.

Geocel Pro Flex RV Sealant is a good product for resealing many types of RV roofs except rubber, vinyl, or acrylic glazed RV roofs. It is an adhesive RV sealant designed specifically for RVs and is helpful for resealing roofs, windows, hatches, and cracks or leakages around the vehicle.

This article will discuss this product’s advantages and disadvantages and how to use it, so read on. 

Description and Features of Geocel Pro Flex RV Sealant

The Geocel Pro Flex RV Sealant (available on is a versatile product that comes in handy for any RV owner. Here are some features of the product that make it a good option for resealing RV roofs. :

  • Resistance to cracking.
  • Perfect adherence to many surfaces, even when a surface is damp, frozen, or oily.
  • Exceptionally flexible.
  • Resistance to ultraviolet rays.
  • Resealability- This means that you can apply it over itself on any surface 
  • You can paint on it.
  • Easy application.
  • Has a non-stringy formulation.
  • When cured, it is mildew resistant.
  • Can withstand adverse weather conditions.
  • Excellent expansion and contraction qualities.

Here are the pros and cons of using the Geocel Pro Flex RV Sealant on your RV. 


This sealant has several advantages, which we will list below:

  • Since it is easy to apply, the user does not need professional help, so it is a good product for DIY projects
  • It is thick and sticky, so a little can go a long way.
  • The quick-drying feature means anyone can easily use the sealant in a time crunch
  • Since it can be applied over itself, you can always go over the spot to be sealed a second time if you’re not satisfied with the result of the first coat. 
  • Its expansion and contraction properties make it one of the best products for RVs because it withstands the temperature changes and joint movements that are common with such vehicles. 


Even the best products have some limitations. Here are some cons of using this product. 

  • Because it adheres perfectly, it is difficult to remove. Therefore, you need to be precise with the application; this doesn’t give a wide margin for error in the application process. 
  • Some users have complained that it flows freely out of the tube, which leads to waste. Although these complaints, I believe, come due to a bad caulking gun or inexperience using one.
  • Many users complain that clean-up is hard after application, so you need to take extra care to ensure no drops in unwanted areas during application. 
  • This product seems to attract dirt (that’s mainly for the white color). 

Is the Geocel Pro Flex RV Sealant Usable on all RV Roofs? 

You cannot use the Geocel Pro Flex RV Sealant on all RV roofs. Although this product is specifically made for RVs and is quite versatile, a few roof types and surfaces are incompatible with the product. These surfaces include the following:

  • Acrylic skylight glazed roofs
  • Roofs made with extruded polystyrene insulation sheathing (Styrofoam, etc.)
  • Single-ply rubber (TPO) roofs
  • Synthetic rubber (EPDM) roofs

It also shouldn’t be used anywhere food is stored or processed; neither should it be used on anything close to or in contact with potable water in the RV. 

On the other hand, feel free to use Geocel Pro Flex RV Sealant on Aluminum, glass, coated steel, steel, wood, fiberglass, and vinyl.

Other Products That Can Be Used To Reseal RV Roofs

There are other products that can also be used for different kinds of repairs on your RV roof and, in fact, other parts of your motorhome apart from the Geocel Pro Flex RV Sealant. 

You may want to consider these three products if the Geocel Pro Flex doesn’t meet your requirements. 

EternaBond Tape Micro Sealant

The EternaBond Tape is a type of tape with sticky sealant on its back. It is designed to bond strongly to all roofing materials. Although it is not designed for sealing a large portion of a roof or the entire roof, it is a handy product for emergency repairs.

This EternaBond Leak Repair Tape (available on is of high quality, though not exactly cheap. It expands, contracts, and flexes, adjusting to all weather conditions. So every RV homeowner would do well to keep it handy when on the road.

I would not recommend using EternaBond tape for a large portion of your RV roof where you could have used other products, mainly because when it is time to remove it and replace it, you will understand why and thank me.  

Dicor Rubber Roof Acrylic Coating

This coating is a popular seal for RVs. The Dicor Insulating Roof Coating (available on is an excellent alternative for those whose RV roof is EPDM and can’t use the Geocel Pro Flex RV Sealant. 

It is recommended to use the Dicor Rubber Roof Cleaner/Activator for best results. Like the main product we discussed, it is quick-drying, allowing you to work fast and be done in no time. 

Liquid Rubber RV Roof Coating

This product is quite easy to use. It can either be brushed on or sprayed onto your RV roof. The Liquid Rubber RV roof coating is solar reflective, UV resistant, and stable, which prevents the sun from degrading it. 

The liquid rubber solutions are basically like painting your RV roof and are something I would recommend if you have lots of small cracks or just if your roof looks like shit; this should not be used as the only sealant but more for flat surfaces.

When properly applied, the final coating has more than 1000% elongation, which prevents adhesion failure. 

This Liquid Rubber Roof Coating (available on is also an excellent option for rubber roofs and other roofing materials incompatible with the Geocel Pro Flex RV Sealant.

Ontop of this, there are many different products to reseal your RV roof. A lap sealant is definitely something you should read up on. Like the Dicor self-leveling lap sealant is another great option and is something I would recommend using ontop of your adhesive sealant.


If you own an RV, you know that proper maintenance is required for it to last long. One part that cannot be toyed with is the roof, so you want to use a reliable product like the Geocel Pro Flex RV Sealant for any reseals and fixes you might need to do. However, keep in mind that you can’t use this product for roofs made of acrylic, styrofoam, or rubber. 

Whenever you are in doubt about a product to use for your RV, do well to consult the manufacturer for specific advice and instructions.

Rikard Adamsson

Hello! My name is Rikard Adamsson; I am the creator of I live full-time in my motorhome, and right now, I am traveling through Europe the right way, without campsites; yes, wild camping and being off the grid works excellent even in a real beauty from 1996. I have done a lot of rebuilding and upgrades. I am happy to share my experiences with everything regarding motorhomes, RVs, or caravans with you here at

Leave a Reply

Your email address will not be published. Required fields are marked *

Recent Posts