PlusRocRV Underbelly Material RV Underbelly Tape Waterproof Flex Belly Tape with Permanent Sealing Adhesive for Mobile Home, Camper Travel Trailer, Tear Repair Patch(6'' x 20')

This stuff works like a champ. It can repair the underbelly material of an RV like nobody's business. I have an RV and Toy Hauler and this is all I used to do the repairs I had to do on the underbelly. Basically the material for an RV underbelly cover is like a 4-6mil tarp material that is very strong and durable. Because it is not normally exposed to direct sunlight it can last a long time but sometimes they can ripped because of running over a very high rock, or a stick pokes up in there and tears it, or perhaps you had to do some mods or fixes to your RV and you had to get in under the floor and cut your way up from the outside. This stuff is almost the exact same material and it is sticky as hell. Here is how to make work like a champ:Pro-tip:1. First, prep the surface. This is really basic stuff and we all know that you should prep the surface and we all get lazy from time to time, but the complaints about it not sticking are obviously bad prep jobs or people who didn't prep at all. Clean off any dirt with a sponge or the like and let it dry. Then give it a quick shot of denatured alcohol to make the surface pristine. Let the alcohol dry for a minute or two and put this stuff on and it will stick like it was meant to and it will never come off.2. Tape from both the inside and the outside if you can. When I was doing floor repairs I had access to both sides and taped both sides and the tear is now stronger than the rest of the underbelly material because it's doubled up and because I prepped, it is never coming off.3. Get more than you think you'll need, it goes quick. I ran through more than I expected doing repairs and ran out. You must go well past the tear on each side to get the best strength so be sure to order enough.4. You can use a little heat to make the material soft to pull it together if the rip has been there a long time and is really wide open. Prep the surface, use a heat gun and soften up the material, pull it together and slap this stuff on and bang, high and tight again.5. Finally, if you have a big hole that is missing a bunch of material, put in a some backing screen or the like. Tape the screen over the big hole really well with the screen on the inside if you can. Then tape the outside and inside covering the screen entirely with a layer on both sides. This will keep the integrity of the material and you won't have any leaks and it won't come out if you do it right.Last tip: You can use this on tarps by using the same prepping procedure and the same times and it works absolutely flawless.

This RV underbelly tape is really the bomb excellent quality adhesiveness sticking to the underbelly is really great. Finally someone come out with a really good product.

This worked VERY well to seal some slits in the underbelly of our camper. I would definitely buy this product again and recommend it.Mice got into the camper through openings where they ran plumbing and didn't bother to properly seal. I cut some slits in that underbelly protective layer to vacuum out seeds, stained insulation, etc. Once everything was successfully cleaned up and restored, I washed it all down with alcohol and used this tape to seal the slits that I had made.The tape was super sticky, even a little hard to get off the roll, but it stuck extremely well to the camper's protective layer. Knowing what the dealer would have charged to do the same work that I did myself, this tape was an excellent value for the money. It also looked just like the protective material that came under the camper, so it didn't look at all out of place.I've been about 2000 miles with it on the camper so far, through rain, gravel and dirt roads, and it continues to stick perfectly in place. I would say that it has great durability for having survived as well as it has so far.

This works great for adding insulation to the underside of our trailer. For curves and angles, a little warming from a heat gun softens the material so that it can be shaped. Once it cools, it holds the shape.The extra special, super expensive tape fell off the next day. Don't bother with it.

I found this stuff really works well. The glue is super adhesive once you stick it. It’s not coming off. The thickness of the material allows you to flatten it out and it adheres really well to the bottom of the RV membrane. I made some repairs with it and I think it will hold up good.

Had to close up an opening in the underbelly after a tank valve repair. I bought the 6" wide, a bit wide for this use, I now would buy the 3" or 4".This stuff has very aggressive adhesive to stick well. But, better adhesion is made through preparation.1. Wash down the surface with warm soapy water, then rinse we'll with a wet rag.2. Wipe down the area with isopropyl alcohol, let dry for 5 minutes.3. Apply the tape.5. Warm the tape with a hair dryer or heat gun, press the tape down while warm.This is the best tape I have used for this purpose, all the others fall off after a few days/weeks. This has held up with no peeling.

Did what it was designed to do and works great. Once stuck on, it stays on.

After installing the new camper underbelly I used this adhesive tape by applying over the seams. It looked great and seemed secured but a short 2 hr trip proved that assumption wrong. The tape started to fall off and it was dragging down the road under the camper. I feared the skirt seams being exposed would catch air and rip the belly out from under the camper. I had to stop at a hardware store and buy some gortilla tape to get me through the remainder of the trip. It didn't do the job as advertised and would not recommend purchasing. I'm currently reviewing some alternatives to seal the belly seams together.