What should I use as marine caulk?
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  1. #1
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    What should I use as marine caulk?

    My plastic boat has some small holes and what is the right kind of caulk?
    I almost went to buy the stuff ive used on fiberglass.
    Is epoxy fine?

  2. #2
    Senior Member Slopps08's Avatar
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    Did you think about 5200? :confused:

    You don't know me but you want to be me!

  3. #3
    Senior Member YakerLG's Avatar
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    5200 will work, but if you want a permanent repair- marine tex. Also depends on the location, flex of material in the area, and size of the holes. pictures would help.

  4. #4
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    Some plastics don't bond well to most adhesives ??? (Sorry I can't be of more help)
    There should be NO Commercial Fishing for any fish species considered 'Over-fished' / 'Undergoing Overfishing' or Subject to Recreational Seasons or Limits

  5. #5
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    The holes are from screws where a transducer were mounted.
    Might have a leaky thru hull.

    So 5200 and marine Tex?

  6. #6
    Senior Member YakerLG's Avatar
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    is the hole below the waterline?

  7. #7
    Senior Member Yaksquatch's Avatar
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    Your best bet is a heat gun and some scraps of plastic. The plastic needs to be that same as what your hull is made of so a piece you cut out of the kayak, say to install rod holders or something, is ideal. Stuff a couple little strips into the holes and aim the heat gun at only those areas. You might see some warpage in the hull around where you're aiming the heat gun. This is normal and results from the warm expanded plastic meeting the cool compressed plastic around. Don't freak out, the warps will return to normal once you're done and they cool.

    Good luck!
    Alex

  8. #8
    Senior Member Sebastain Padler's Avatar
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    5200 is one of the few "caulking" type adhesives that will seal & stick to the plastic used in kayaks. G-Flex is also a great 2 part epoxy we use at the shop to make repairs to cracked hulls. I will form a tough and watertight seal.

  9. #9
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    Yes

  10. #10
    Senior Member MaL's Avatar
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    plastic for holes in plastic, always.
    not much reason to mix materials unless you absolutely must, just to get through the weekend or something.

    any old soldering gun will melt some plastic. if you don't have a heat gun you can use a lighter to carefully pre-heat the holes and then melt in some new plastic.
    contact either the place you bought the kayak from or the company that makes the kayak, they will likely send you a slice of plastic that matches the make-up & color of your kayak. and even give you some pointers if you need them.

    if you can take the kayak somewhere its a quick job for most places, wouldn't cost much.

    google kayak repair and you will see tons of videos on how to do it.

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