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Old 10/23/2020, 02:58 PM   #1
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Join Date: Jan 2006
Location: Michigan
Posts: 1
Aquarium Sealant

I am repairing an aquarium, replacing a side glass. What sealant should I use? I am not seeing anything in stores that says "aquarium safe". What should I look for? Is 100% silicone safe?

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Old 10/23/2020, 05:47 PM   #2
Michael Hoaster
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Join Date: Feb 2004
Location: Boulder, CO
Posts: 5,330
Welcome to RC, dbp!

Have you checked a good hardware store? They sell 'aquarium safe' silicone at mine. 100% silicone is safe. Let it cure 24-48 hours and you're ready to leak test. Good luck with the project!

As many naturalists and environmentalists have suggested, we should set aside our arrogance,
our desire to conquer and control everything, and walk hand in hand with Mother Nature. -Walter Adey

Current Tank Info: 180g Seagrass Sandbar Lagoon, START DATE November 28, 2018
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Old 10/24/2020, 05:29 AM   #3
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Join Date: Aug 2011
Location: Tucson AZ
Posts: 97

If you are looking for black, I purchased a used tank and had to reseal it due to a leak. I used Momentive RTV103 from McMaster Carr. That stuff is wicked!

Good luck with your project.

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