Expanding polyurethane foam

Discussion in 'Anything DIY Related' started by moz, 17 Dec 2007.

  1. moz

    moz

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  3. Kanga

    Kanga Retired Moderator MASA Contributor

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    MIght look like rock, but it wont ever be live rock

    JMO
     
  4. Mekaeel

    Mekaeel Moderator MASA Contributor

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    something i wouldnt trust.rather go for ceramic IMO
     
  5. moz

    moz Thread Starter

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    Live rock, won't create the effect I'm looking for (3 sided rock pool, hidden equipment), and I don't have a kiln for ceramics, the other options are concrete (but 2 months to cure, thinking of a nano tank for the competition), or as a friend of mine suggested real rock and an angle grinder:lol:.
     
  6. Kanga

    Kanga Retired Moderator MASA Contributor

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    There is a ceramic place in Sydenham, also in FW i have seen guys "burn" polystyrene with a blow torch with some nice results
     
  7. viper357

    viper357 Admin MASA Contributor

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    What exactly are you trying to create moz? A background on the glass?
     
  8. moz

    moz Thread Starter

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    Yes, i'm looking at creating a 3d background with ledges, caves etc, on three sides of the tank, the effect I'm thinking of is a rock pool with window.
     
  9. Mekaeel

    Mekaeel Moderator MASA Contributor

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    i know Northlands sells that backing you talking about.if im not mistaken its the same foam stuff
     
  10. moz

    moz Thread Starter

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    Is burnt polystyrene reef safe?
     
  11. Kanga

    Kanga Retired Moderator MASA Contributor

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    Well its FW safe if that helps
     
  12. viper357

    viper357 Admin MASA Contributor

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    I'm sure I can remember seeing it somewhere being used in reef tanks, although I'm not too sure, that stuff really stinks when you burn it.

    Like Mekaeel said, you can buy the ready made backgrounds, but they are rather expensive.
     
  13. Mekaeel

    Mekaeel Moderator MASA Contributor

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    whats the length and height of your glass moz?if i pop around northlands,will check up for you
     
    Last edited: 18 Dec 2007
  14. moz

    moz Thread Starter

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    Thanks, but I am still finalizing the shape of the tank.
     
  15. Kanga

    Kanga Retired Moderator MASA Contributor

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    Chris has got it as well, pricey but almost nice in a kitchy way:lol:
     
  16. sihaya

    sihaya

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    Whoa... dude, that's like, so deep man. :rockon:
     
  17. Kanga

    Kanga Retired Moderator MASA Contributor

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    The Tao of Kanga:biggrin:
     
  18. gaboon

    gaboon

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    I've tried polystyrene in my snake tank and expanding foam in the frog tank.

    You can see the polystyrene in the background. I melted it with thinners and then a slurry mix and paint. Worked quite well
    [​IMG]

    This is the expanding foam from Braeven. Got it at Builders Warehouse. I phoned the manufacturers to see if it was safe but they didn't know so took a chance. I do know that polyurethane is safe once cured but really dont know how safe it would be in an aquarium
    [​IMG]

    [​IMG]
     
  19. gaboon

    gaboon

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    [​IMG]
     
  20. Mekaeel

    Mekaeel Moderator MASA Contributor

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    looks pretty cool,hope its reef safe and doesnt leach any toxins into a tank
     
  21. palmerc

    palmerc

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    I would think it would be safe to use when fully cured. Regular filter sponges are also polyurethane foam (open cell foam - much softer), whereas the expanding type foam in an aerosol tends to be harder (more closed cells).


    Here's an article i found which is on the topic
    http://www.reefkeeping.com/issues/2003-08/nftt/index.php
     
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