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1L243's avatar
1L243
Explorer II
Oct 02, 2017

Identify Roof Sealant

Trying to find out the type of roof sealant manufacturer used on my 2017 Dutchman Coleman Lantern 300tq.

The roof membrane is tan TPO by Alpha Superflex. They used tan lap sealant on the roof EXCEPT where the trim terminates on the sides (front and rear). The sealant is Black. It's not a lap sealant because they formed or shaped it somewhat when they installed it?

Any thoughts on what it is. I want to do a little touch up.... Dicor or Superflex will probably work for the touchup but would like to know what it is.

Seeking Advice
  • mbopp's avatar
    mbopp
    Explorer
    Oct 02, 2017
    Rumor has it Dicor will wrinkle the Alpha Systems roof. I ordered Alpha Systems caulk from Amazon.
  • westend's avatar
    westend
    Explorer
    Oct 02, 2017
    The edge sealant is probably a polymer like Dicor Lap Sealant. The formed sealant looks a lot like black Butyl rubber sealant. AFAIK, black Butyl rubber sealants adhere to everything but silicone so would be a good choice for maintenance. The tan roof edge trim should be maintained with a lap sealant that's specified for TPO roofs.
    Good luck with the touchup. If you don't get exact answers here, a call to the mfg may turn up the exact product information.
  • ScottG's avatar
    ScottG
    Nomad
    Oct 02, 2017
    That looks like the sealant I found on the front and rear windows of an old Ford I was restoring. After 50 years it was still tough to remove but using lots of lacquer thinner broke it down after carving as much off with a plastic scraper as I could.

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