Liquid Rubber EPDM and TPO Primer – High-Performance Basecoat for RV, Camper and Trailer Roof Protection, 1 Gallon

Used in conjunction with the tape and rubber coating to fix the roof of my camper. Once it is on do not try to walk on it as it is extremely sticky.

Worked perfectly. Sealed totally

This stuff was amazing. I will definitely use it again. It made my RV roof incredibly tacky so then when I added the rubber coating, it’s stuck very well.

Verry sticky

Good product. Easy to apply

After prepping my roof (scraping, rotory 3m disc, and lacquer thinner) removing the old sealant off the trailer roof, I applied the primer with a brush to the perimeter seam. This is a 6×12 trailer, I applied a 6" wide swath, then it tacked up slightly, so I applied a second coat to cover any deficiencies I may have left. Still have a half quart left. Material is very thin and easy to apply. The following day I laid down the seam tape, immediately followed by the top coat. Second coat of top added also a day or two later.

This stuff is makes everything stick. It's amazing. I used it to seam a new EPDM KOI pond using seam tape. This stuff works crazy good. I am going to use it to seam my RV Skylight next.

I bought this product for my koi pond. I want to make sure that I do it correctly by calling tech support for advice, I followed their instructions very carefully, I even bought the primer as their recommendation. After 8 months when my koi pond was completed, the liquid rubber started to peel off and make my koi pond looks so nasty and it keeps peeling off every day. I am so regret that I bought this product, I don’t know how to fix it. Please don’t buy this product, very low quality

Very sticky stuff - can not walk on it - follow instructions

Works well

I bought this for my camper renovation. With a few help from online tutorials, install went without hiccup. I have also bought the brand’s paint and application was manageable. Will review it’s durability after some time. Great product!

This primer is very strong and sticky. It does its job, but even when it dries you won't be able to walk on it on the roof of your RV or you'll get stuck with your shoes. Even after 3 days, it is still sticky. So, if you want to paint your roof with liquid rubber afterwards, you have to wet your shoe soles to get a step at all. It is best to walk on the freshly laid liquid gum and follow from the beginning of the roof to the end. Otherwise, you tear the membrane off the camper's roof, trying to tear your shoes off the camper's roof.

En fait, ce primer est plus comme une sous-couche de colle. Assurez-vous de l’étendre à l’avant de vous et de reculer tout le long. Assez adhérant que ma semelle de chaussure y est restée quand j’ai mis le pied dessus par erreur en voulant compléter un bout derrière moi avant de descendre du toit de la roulotte. Avec le primer et "liquid ruber", mon toit de roulotte est ultra étanche et sûr.