Liquid Roof F9991-4 Review

Last Updated: 20.06.19

Main advantage


The main advantage of this item is perhaps the fact that it doesn’t require any particular skills or complicated tools to be applied. It’s a one person job maximum, and it can be done in a couple of hours with the help of a few basic items.

Also, remember to carefully clean the roof before you start applying this substance because there should be no dirt or debris left behind. You can now give your vehicle a new, fresh face and change its aesthetic with an affordable roof sealant that also does a great deal to protect the interior space.


Main disadvantage


There have been complaints saying that despite being a good product, the main drawback of this sealant is the fact that it requires a lot of preparation, so it’s not as easy to use as most customers would think, at least according to the manufacturer’s description of it.

However, that’s true of any item like this, because you need to make sure that the surface of the roof is clean and as even as possible before going on to apply a sealant, otherwise it won’t reach its purpose. If there’s any old roof coating left from the last application you should do your best to get rid of it.

Buy from for ($330)



Top 3 features explained



The role of a good RV sealant is to protect the roof from various harmful external factors such as water infiltrations, but this one does a lot more than that. First of all, it provides a flat, aesthetic surface that you can apply other layers on top of.

It’s compatible with a wide range of different surfaces, which makes this product an excellent choice for customers who own more than one vehicle or who are not sure what would be the best choice for the type of material that their roofing is made of.

Materials that work well with this product are, for example, aluminum or other metals, which is pretty typical for medium-range priced RVs.




Another purpose that can be easily achieved by using this sealant is that of giving a new look to an overused vehicle. It’s true that the roofing is the part that is perhaps less noticed by the pedestrians, but that doesn’t mean that you shouldn’t try to create an aesthetic surface.

This product will develop a flat surface that is good-looking on its own, but due to its texture, it will give you the opportunity to apply several layers on top, such as a coating of paint for example, which would drastically change the entire aesthetic of your vehicle.

Of course, we recommend, if you do choose to paint it, that you do so in a bright color, preferably white because otherwise, you will attract the sun rays and the temperature inside will significantly increase.



According to the customers that have tried this product and reviewed it over the course of time, it’s evident that it has good value for the money. You can use it to cover the entire surface of an RV roof with one layer, and you would still have liquid left in the container.

That’s great because if there are certain areas that require a slight touch-up, you can use the leftovers to go about it discreetly and no one will notice the difference.


Buy from for ($330)




1 Star2 Stars3 Stars4 Stars5 Stars (1 votes, average: 5.00 out of 5)
Google Analytics Alternative