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Old 12/30/2017, 11:59 PM   #1
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Join Date: Oct 2015
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Removing silicone before making tank- how clean!

Im turning my 125 into a sump for my new 180, so removed 4 x 1/4 inch thick glass baffles from a diy 40b sump. Iím thinking I might use the glass panels to make a small 7.5 gallon mangrove tank to pretty up the basement sump fishroom. Cute little 17w x 8d x12h.

Iíve been scraping silicone off these things whenever I get 30 minutes free for 2 days . Iím down to a really thin film, not continuous, and was wondering if i should keep trying to get it all completely clean before attempting to make the tank?

Magic eraser and more elbow grease? Any tips?


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Old 12/31/2017, 06:33 AM   #2
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All of the above...razor blade...vinegar soak...magic eraser..whatever works

Being blunt and having fun
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Old 12/31/2017, 08:04 AM   #3
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Location: Rehoboth, MA
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New silicone will not adhere to old silicone, so therefore it must be completely removed.
Google remove or dissolve silicone, there are lots of products that will help remove any residue. Some can even be had at Lowe's or Home Depot.

"I never make mistakes...
I thought I did once, but I was wrong"

Current Tank Info: In the process -
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Old 12/31/2017, 09:08 AM   #4
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Current Tank Info: 125gal
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Old 12/31/2017, 12:40 PM   #5
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Made some progress with spraying the edges with wd40, wrapping it in seran wrap and letting it marinate for 4 hours. First panel took 10 minutes to scrub off with a green pad. That pane looks good as new.

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Old 01/01/2018, 07:43 AM   #6
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Acetone and steel wool works like a charm.


100 gallon DT and 50 gallon sump with refugium. Reefbreeders Photon V2+.
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Old 01/01/2018, 07:42 PM   #7
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Yep, acetone & steel wool works well to get the final haze of silicone off.

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