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pickjare's avatar
pickjare
Explorer
May 22, 2016

Eternabond over uncured Dicor lap sealant

I put Dicor self leveling sealant over the rear roof joint and all screw heads that runs across back of my Nash 22H trailer. It cured for about 2 1/2 hours or so while I worked elsewhere. I couldn't leave well enough alone, was real worried about weather I had fixed the roof leak, and next thing I knew I was pressing eternabond tape across the seam and that lap sealant had only skinned over. It was very gushy.
I know I have done this procedure incorrectly. My question is, what will happen? HAS anyone ever done this and will ithe Dicor set up so it can do its job if water happens to get past eternabond tape some day? FAQ on Dicor website says waterproof in 4 hours but takes days to fully cure at 70 degrees. No question it was uncured as I covered it with eternabond. I appreciate your advice.
  • westend's avatar
    westend
    Explorer
    May 22, 2016
    2oldman wrote:
    If you really want to slow down, weed.
    True, but it adds complexity and lack of completion. :B
  • westend's avatar
    westend
    Explorer
    May 22, 2016
    The Dicor sealants are urethane based. They cure in the presence of water/humidity. Let the Dicor cure and then roll the tape again to release the micro-adhesives in the tape.

    If the tape doesn't stick, remove it with a heat gun/hair dryer, scrape the Dicor off with a plastic spreader and caulk remover, clean the whole area with acetone, and apply the tape again correctly.

    The reason God made beer was to slow down projects like this so a guy doesn't get carried away. Next time, more beer.
  • christopherglen's avatar
    christopherglen
    Explorer
    May 22, 2016
    I would guess the Dicor will set at the edges of the eternabond tape, and a small distance under it (1/4 to 1/2 inch I would guess). I assume the eternabond tape would prevent it from curing just like the container it is shipped in. Given enough time (weeks / months) in warm temps it is likely to cure through. Just remember, the eternabond tape isn't attached to anything, just goo at this point. If you can't clean it all off and start over, another top coat of Dicor will at least seal it, if not make the mess larger later.
  • gbopp's avatar
    gbopp
    Explorer
    May 22, 2016
    I would remove the Eternabond and the Dicor (as much as possible), clean the area well and apply New Eternabond.

    I definitely would not trust it the way you have it applied.
  • Jim-Linda's avatar
    Jim-Linda
    Explorer II
    May 22, 2016
    I believe you will discover a sticky mess that is not adhered to anything.

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