Don't know what you call it, but the corrugated plastic that closes-in the belly of my 5er needs help. After a few repairs to dump valves, I need a good product to seal-up the bottom. 'Duck' brand duck-tape just doesn't hold-on very long and I would like to find some type of (wide, maybe 4-inch) adhesive tape to close-up the bottom. Any sources for something that really works?? Thanks, folks.

That 4 inch wide gorilla super strong tape works well.

If all else fails there is Eternabond. Sticks very hard and won't come off.There are other construction peel and stick membranes as well that will work.Duct tape is useless for that application. It dries out and crumbles quickly.

Maybe try tarp repair tape. TSC usually has it. I would think if it can withstand the wind on the highways on the back of a semi trailer it might work for you.

belly liner repair | Good Sam Community

Fisher_Bill
Explorer
Jul 30, 2021
Mine kept coming loose from the strips of metal that clamp it up to the frame so after the second time of trying to re-clamp it I bought strips of 1/8 x 2" metal and bolted those up in 3 places from frame to frame, hasn't moved since. Fortunately I didn't get any tearing (so far).
Thermoguy
Explorer II
Jul 30, 2021
Has anyone actually used coroplast tape? I have a couple places I need to repair and plan to buy the right tape if anyone has used it. Seems like to you have to clean the surface then heat a little first.
ford_truck_guy
Nomad
Jul 30, 2021
rhagfo wrote:
Wow, so many that have an Eternabond as the save all fix all. I have had great results with gorilla tape. I always cut a three sided flap, once work is done, apply tape to the three sides of the flap. Then push the flap up and seal to the cleaned surface around the opening, hinge side always forward.

My black Gorilla tape pealed after 1 year on the 3 sided flap I had.... I figured I would try the eternabond to see the difference. I just added it 2 weeks ago, so we shall see
rhagfo
Explorer III
Jul 30, 2021
Wow, so many that have an Eternabond as the save all fix all. I have had great results with gorilla tape. I always cut a three sided flap, once work is done, apply tape to the three sides of the flap. Then push the flap up and seal to the cleaned surface around the opening, hinge side always forward.
ford_truck_guy
Nomad
Jul 30, 2021
I just did that to mine and used 12" black eternabond... will never have to worry about that section
vinyl_addict1
Explorer
Jul 30, 2021
Lynnmor wrote:
Here is one option.

This is exactly what I used last week to repair a tear in the belly. It appears to hold very well if you clean the surface that it adheres to. Previously I made the repair with the silver HVAC tape but it lasted only 1 year.
alboy
Explorer
Jul 30, 2021
Most rv dealers carry the tape to repair the belly,you can buy by the foot.Clean the area first with a cleaner and it will not come off,unfortunately ive used many feet of it.
NamMedevac_70
Explorer II
Jul 30, 2021
I have used white eternal bond tape for various outside minor small repairs on the TT and it looks great against white color of the trailer and last a very long time. Should do fine underneath the trailer as it is not thin like many other tapes. Cheers
rhagfo
Explorer III
Jul 30, 2021
agesilaus wrote:
That 4 inch wide gorilla super strong tape works well.

Well I used 2” on a flap I needed to open to get to the fresh water drain, it has worked before when I sealed the belly for several years now!
gtnsmlr
Explorer
Jul 30, 2021
I used 1/2 x2 wood strips and small drywall screw for future access.

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