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1handyhubby's avatar
1handyhubby
Explorer
Jun 11, 2016

Anyone use flex seal?

I just bought a Host camper and noticed it needs chaulk in a few places. I'm not familiar with newer campers and how they're built now and I noticed the chaulk used looks and has the feel of Great Stuff (foam filler). I contacted Host via email and was told they use flex seal. They didn't say where they get it. Anyone here use this and if so where did you find it? Thanks.

18 Replies

  • Grit dog wrote:
    Don't use that cr ap.... Oh and don't use flex seal as seen on tv!


    X2
    That Flex Seal peels off after awhile. I used it on my roof as suggested and it lasted a whole 2 weeks. They DO make tubes of it.

    OP: What is a Host Camper?
  • Don't use that cr ap. If you need to re caulk anything on the sides, scrape out the old caulk unless it's not in the way of new. Clean it up good, get all the old off the surfaces with a razor knife and wipe it down with solvent to clean it up, like lacquer thinner.
    Use a good urethane caulk, not silicone. Like Sika flex or dicor? Whatever the rv shop Reccomends. You're not going to find what you need at the Homie Depot.
    Use the smallest bead possible. Takes a little skill to caulk well and it shouldnt include using your finger as a putty knife everywhere.
    Oh and don't use flex seal as seen on tv!
  • Definitely go with and they probably used pro flex. You can get it at just about any rv parts department.
  • You won't find a professional using that. Just stop in at an rv dealer and find out what's good. They do repairs all the time.
  • FLex Seal comes in a spray can. I can't imagine they'd use that around seams and trim pieces. That just sounds weird.
  • I think a normal caulk like Pro-Flex is what you want. It comes in different colors.
  • They wrote Flex Seal. I've heard of what you are referring to and that's why I'm asking the question because it seemed odd to me. I need to caulk around the door frames of propane tanks and rear storage. When I was inspecting the caulking I noticed it had a yellowish tint and feel that reminded me of Great Stuff. Thanks.
  • I'm sure you can buy Flex Seal at a as seen on tv store or online. I don't think it's the replacement of caulk though and not a foam filler. Are you sure they didn't say Eternabond WebSeal?

    Pictures for what you are wanting to "fix" would help.