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  • Results 1 to 12 of 12

    Thread: Polyurea Spray Can

    1. #1
      bdel01's Avatar
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      Polyurea Spray Can

      Hey everyone,

      Does anyone know of a polyurea spray that comes in a spray can? I have a hairline spacing in my concrete pond wall that goes around the perimeter of my skimmer. We all know that plastic and concrete can expand at different ratios. Was wondering if anybody knew of a spray i could fill the gap with so i stop losing water. Fish safe of course.

      -best
      Ben
      best
      -ben

    2. #2
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      Just use PL roof and flashing polyurethane sealant, in a caulking tube. if you can reduce the waterlevel a bit clean the area and soften the existing poly by wiping it down with some MEK.
      Koiphen member since 05-13-2004
      This one time, at band camp....

    3. #3
      batman's Avatar
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      Personally I'd use the recommendation posted above but if you're wanting a spray or liquid brush on product look at the Flex Seal products. They work great and are fish safe.
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      The real Batman wears polyester! Don't be fooled by the plastic imposter.

    4. #4
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      Have you used flexseal? i heard it wasnt fish safe
      best
      -ben

    5. #5
      cottagefog is offline Senior Member
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      Here is the MSDS sheet on Flex Seal. Nothing really jumps out about it being toxic to fish. I would imagine once cured its even safer for fish, but that is just my opinion.

      https://images.homedepot-static.com/...15fb993b0a.pdf

    6. #6
      nil13 is offline Senior Member
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      The manufacturer of Flex Seal specifically states the flex seal spray is not fish safe. It's the paint on flex seal that is fish safe once fully cured.

    7. #7
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      Almost all of the sealants used here are not certified fish safe. Only a few state they are once fully cured. Once fully cured even the non fish rated ones often used here don't appear to have caused anyone problems. This is why I personally don't recomend filling a pond before a sealant such as roof PL has cured. Even aquarium grade silicone is only non toxic after fully curing.

      Yes I have seen the spray used successfully with no ill effects.
      Last edited by batman; 6 Days Ago at 09:13 AM. Reason: Clarify
      The real Batman wears polyester! Don't be fooled by the plastic imposter.

    8. #8
      cottagefog is offline Senior Member
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      "The manufacturer of Flex Seal specifically states the flex seal spray is not fish safe"

      Maybe I am missing something, I cant find on the MSDS where it states it is not fish safe?

      They do list one chemical in its ingredient that is toxic in its liquid form, but who is going to pour flex seal straight into the water?

    9. #9
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      I have used Flexseal on a waterfall with no issues for the fish. I used in two years ago and have had no fish deaths since I applied it to the waterfall. I used the liquid and applied it with a paintbrush.

      Yorkie
      Last edited by yorkie; 6 Days Ago at 02:12 PM.
      A true pondaholic!
      40,000 Gallons, 45 koi




    10. #10
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      From Flex Seal official site. Information for Flex Seal spray cans.
      Attached Images Attached Images   
      The real Batman wears polyester! Don't be fooled by the plastic imposter.

    11. #11
      nil13 is offline Senior Member
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      I was looking at the FAQ where it says the spray is for nonpotable water only. Which is a big nope for me.

    12. #12
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      Not trying to downplay or be overly critical of wanting potable water certified but applying this standard would eliminate almost all pond equipment and products currently used.
      The real Batman wears polyester! Don't be fooled by the plastic imposter.

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