Neat silicone on tank build

Discussion in 'Anything DIY Related' started by Jaco Schoeman, 15 Jul 2010.

  1. Jaco Schoeman

    Jaco Schoeman MASA Contributor

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    Guys...

    Can anyone give me tips on how to silicone panels together, without having it look like my 3yr old did it? I just can not get it right. How do yo make the silicone look even and neat? Must one make those "diamond" shaped scrapers and if so, how?

    Also, when building, do you put silicone on the "thickness" of the glass before sticking it to the other panel, or just clamp the panels together and then apply silicone on the inside? And what about the outside?

    Thanks for your help in advance...
     
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  3. xtreme

    xtreme

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    Hi Jaco
    Masking tape, look at my builds.
     
  4. xtreme

    xtreme

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    oh and on the thickness then stick them together
     
  5. Singularity

    Singularity Hmmm amper!

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    masking tape is a must for a super neat finish.
     
  6. chikaboo

    chikaboo

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    Sounds a bit gross but "spit" on your finger works very well to smooth out the silicone and even liquid soap like sunlight soap or any dishwashing liquid soap works very well.....
     
  7. xtreme

    xtreme

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    lol chikaboo, spit is easier
     
  8. PoPe_G

    PoPe_G

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    Thinners works aswell, just a bit on your finger @ a time though. Gives a nice even finish with a bit of practice.
     
  9. Evo R

    Evo R

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    Those diamond shape scrapers you get at CTM for like 30 bucks.And put the sillicone on the thick side and press the two planes together till it 'oozes' out the sides.Useing masking tape or duck tape fasten the two sides together till the sillicone bonds nicely and useing the scraper tidy the excess sillicone.
     
  10. RiaanP

    RiaanP Moderator

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    Those blue plastic scrapers. Works good.
    And have plenty of hand towels or toilet paper nearby.
     
  11. PoPe_G

    PoPe_G

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    Even better idea....
     
  12. Singularity

    Singularity Hmmm amper!

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  13. LuckyFish

    LuckyFish MASA Contributor

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    Jaco, CTM got these. Very useful tool. I got one from Germany, but CTM is selling them recently as well.

    Oops, speedreading. Just saw EvoR posted it already.
     
  14. LuckyFish

    LuckyFish MASA Contributor

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    It is not. If you use the diamond shaped tool and black silicone, masking tape is not needed.
     
  15. Singularity

    Singularity Hmmm amper!

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    I like a perfect and even edge, only thing that gets it like that is masking tape
     
  16. viper357

    viper357 Admin MASA Contributor

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    How long do you leave the masking tape on before removing it?
     
  17. Neil H

    Neil H Moderator MASA Contributor

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    Here is my take on this, this applies to bigger builds, 6mm and above for the neatest build.

    all the methods above work, i am not disputing that but the best way IMHO is as follows.

    > Use a corner clamp to make sure you have the appropriate spacing between the glass (thicker the glass bigger the gap. Make sure the surface is clean.

    >inject the silicone into the gap, takes some practice but using a finger one can force the silicone into the gap until it just protrudes out into the tank (working from the outside) using this way ensures NO bubbles in the silicone.

    >clean off excess silicone on the outside of the tank with meths or similar, the clamp holds everything in position allowing you to work without disturbing the joint.

    >let the joint cure for 24 hrs

    >remove clamps repeat for the rest of the tank joints

    > Clean up excess silicone with knife if required

    > take your time to mask off the joint ....

    > inject silicone on the inside of the joint, use a spoon or other blunt object to work the silicone into the gaps to avoid bubbles.

    > use a spoon to smooth out the joint, teaspoon works best or the edger tool mentioned above

    > remove the masking tape immediately

    >Use the wide (like 4cm wide) tape and the odds of u messing on the glass are almost zero.

    this is how i build my tanks and i know it is pretty much how Leslie builds as well and the neatness of my builds has improved greatly over time.

    I could never get anything neat using the other methods described above, but maybe its just not enough practice?
     
  18. robvdv

    robvdv

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    As short a time as possible. If the silicone skins over, then the masking tape pulls it up and you get a ragged edge.
     
  19. butcherman

    butcherman Moderator MASA Contributor

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    ....Dont let your three year old do it.... :razz:
     
  20. viper357

    viper357 Admin MASA Contributor

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    Thanks Rob.
     
  21. Andreas

    Andreas

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    Rob is right. The faster the better. Even leaving it for 30min will cause issues when you pull it off
     
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