Resin Reef Safe?

Discussion in 'Anything DIY Related' started by viper357, 21 Jan 2013.

  1. viper357

    viper357 Admin MASA Contributor

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    Hi guys

    Polyurethane Resin, any idea if it's reef safe?

    These are the ingredients in the resin, also know as Potting Compound:
    Polyol Base
    Aliphatic isocyanate Hardener

    I've also got a second option which has these ingredients:
    3-Aminomethyl-3,5,5-trimethylcyclohexylamine
    Benzyl alcohol
    Benzene-1, 3-Dimethanamine

    Would either of the above two resins be safe to use in my tank?

    Thanks.
     
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  3. Albert Terego

    Albert Terego

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    I have seen some guys have used polyurethane foam to build artificial reefscapes (that aerosol one that is used as a gap filler) I reckon once it's fully cured it should be fine. AFAIK the aerosol product is isocyanate/polyol based.
     
  4. RiaanP

    RiaanP Moderator

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    definitely not safe until the smell is gone.
     
  5. Visser

    Visser

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    What do you want to use the resin for?
     
  6. OP
    viper357

    viper357 Admin MASA Contributor

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    Thanks, I'll look into that.

    To seal an electrical joint that will be under water.
     
  7. Visser

    Visser

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    Just out of curiosity... Will normal 2 part epoxy glue not work better?
    I know it will be reef safe once it is completely cured...
     
  8. RiaanP

    RiaanP Moderator

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    oh, like those DIY joints sold at the hardware stores. You can use it on a borehole, so I do believe it should be OK. But then again seawater do corrode more than borehole water.
     
  9. Albert Terego

    Albert Terego

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    Or even silicone sealer?
     
  10. dallasg

    dallasg Moderator

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    Now why would you want a join underwater? Hobby not difficult enough, I thought these ideas were left to us vaalies haha
     
  11. seank

    seank

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    Use it, paint it over with gelcoat or flowcoat... Prevents leaching of chemicals...
     
  12. Dillan

    Dillan

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    A good idea to have a connection in sea water??? shocking:eek:
     
  13. Express Reef

    Express Reef

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    Last edited by a moderator: 26 Nov 2015
  14. Mc

    Mc

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    I have used 2 part epoxy for a few thing and had no problems, I just left it to cure for about 24 hours.
     
  15. OP
    viper357

    viper357 Admin MASA Contributor

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    lol, thanks guys.

    My main concern is the fact that the wire is obviously copper so I need it to be a very watertight seal, I've used silicone before and it came apart so not keen on that again. It looks like the 2 part resin will be safe, I'm pretty sure it's the same stuff they use in the pumps to seal the cable join inside the pump. I'll leave it to cure for a few days before putting it in the water.
     
  16. butcherman

    butcherman Moderator

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    :lol: apparently not :p
     

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