Forum Discussion

mudbud255's avatar
mudbud255
Explorer
Feb 08, 2017

Plastic under TT

Previous owner must've had a blow out and damaged the plastic wrap under the TT. Wood floor is still good just where the damage is the duct taped is coming apart. (Previous owner used duct tape to reseal insulation wrap) I saw this when we purchased TT, and could feel the underside was still intact.Is their a better fix for this or do I just need to keep duct tape on hand? The plastic wrap is damaged from the frame to the outside and in between two steel runners. It's about a 12x18 inch section above tires. Any help would be appreciated, want permanently close this up to prevent damage. Thanks guys
  • Thomas_NH's avatar
    Thomas_NH
    Explorer
    Feb 08, 2017
    Grace bituthene (roof sealant) will do the job for you. You can get small quantities at the building supply stores. It tuff stuff to work with (think Tar Baby and the Brier Patch), but once you get on there, it's its sealed forever. I use it for all sorts of projects. My son-in-law is plant manager for Grace and I get some of the rejects... I have to be careful when asking for some. last time I got 6 100' rolls to do a small garage roof.

    On my last trailer, I cut some strips, stuck them on above the tires and used some staples to hold it in place.
  • NanciL's avatar
    NanciL
    Explorer II
    Feb 08, 2017
    What Grandpakip said: is the best way to go

    Right now the Forest river Tech. had to cut ours to get at pipes that had to be repaired under warrantee, and he had the same material that has a sticky back that is made by the same manufacturer.
    He said any duct tape will not stay stuck and will come off.

    jack L
  • ScottG's avatar
    ScottG
    Nomad
    Feb 08, 2017
    I've had to repair that area myself.
    Gorilla tape is hit and miss - it doesn't stick very well to that kind of material. Even after wiping the area down with solvent and applying the tape it would seem to be fine and then fall off later. I ended up using a piece of plastic cardboard from a sign shop and screwing it into a wood floor joist I found.
    The company my DW works for actually does this kind of work on the bottom of mobile homes. The professionals that patch the material (called rodent barrier) use spray on contact adhesive and another piece of the material to create a band-aid of sorts. It holds up well.
  • GrandpaKip's avatar
    GrandpaKip
    Explorer II
    Feb 08, 2017
    If you are talking about Darco fabric, the black woven plastic covering glued to the bottom of the floor, your best bet is Surface Shield. It is a scrim tape made to repair Darco and Choroplast.
  • MFL's avatar
    MFL
    Nomad II
    Feb 08, 2017
    It would help if you could post a pic of the damage. Just a few patch options, piece of coroplast, or galvanized sheet metal. You could then seal with some form of undercoating.

    Duct tape is just a temporary fix.

    Jerry

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