Best Silicone for resealing large tanks

Frank Castle

Potamotrygon
MFK Member
Jan 10, 2016
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Guess its time to just nut up already and commit. Trying to get this done on saturday To get this stage over with so I can work my filtration plan through
I got a few tanks Ill be doing this week myself.....my biggest problem is overthinking things, when I just need to get up and start working on them
 

thebiggerthebetter

Senior Curator
Staff member
MFK Member
Dec 31, 2009
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IME and IMHO, GE silicone 1 is fine and used often, by small-scale professionals too. Don't use GE II as it has anti-mold additives that are toxic.

Also, it's not so much the kind of silicone that matters because all 100% silicones are equal in my limited understanding. It's the approach. The hands-down best approach is to remove the whole glass panel, clean off the old silicone, and silicone the panel over again. Just redoing the inside seams is a band aid IMHO and in this case low effort = poor reliability.

If worried and/or for extra strength and safety margin, can add a glass strip, e.g., 3/8" thick by 1.5" wide along the bottom, the entire length. That buys a lot of safety. This is how large scale professionals do it.
 

CANAMONSTER

Redtail Catfish
MFK Member
Dec 5, 2012
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Barrie
For what it's worth guys anything over 200g just use the SCS if you can because that's what it's made for. Structural applications
 
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