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Reseal aquariums; 2 different brands of silicone


MarisaH
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Questions are in bold at the end if you want to skip reading most of the post.
 

Hi all, I got some good information to share if anyone plans on resealing a tank soon, but I also have a few questions for anyone who can answer.  Attached are some photos of the silicone I used & 54 gal tank I am in the process of resealing.

First here is some background info;

Last year in Early Spring 2023 I resealed a my 40 breeder with ASI aquarium safe silicone sealant via Amazon. That stuff worked great sealing wise, but took quite a long time to dry and fully cure. Kinda made me mad because it skinned so quickly but took forever to fully cure. (I usually do a test by putting a few beads of thick silicone on a piece of plexiglass. Then cut into it after certain periods of time to see if it fully dried or not so I can get a good estimate on if the silicone on the tank is actually fully cured or not.)

After reading through quite a few threads via Google, and based on comments on the Amazon review, people said they recommend waiting at least a week because this stuff takes a while to dry. I waited 7 days for it to fully cure. Then placed it in my garage, inside of my dog/children’s folding swimming pool to catch any water if it leaks. Then filled it all the way up & checked on it every day for leaks. I let it sit for about 6-7 full of water before I decided to drain it & bring it inside to use. 1 year of use later & it’s still doing great, no issues.


Around the same time (Early spring 2023) I started maintenance & care every week on a 10gal tank at my sister’s house for my 2 nieces & brother in law. Neither of them knew much about this hobby so we decided it was best for me to do it, so we could make sure the fish would actually be happy & live LOL.
 

My brother in law just decided to get into the hobby after a year of me doing everything & he upgraded from a basic 10gal to a 54 bow front. (Low key very excited he’s got the same hobby as me now. But my sister may not be. 😂

The bow front was free & needed to be resealed since it is exactly 20 years old & the seal was falling apart. He asked if I could reseal it since it wasn’t my first rodeo lmao. I said yes & purchased a difference silicone via Amazon since I wanted to see if this one worked better than the ASI. The new one I ordered was another popular brand recommend on other google threads. It’s called Selsil Aquarium Silicone Sealant & it states you only have to wait a few hours for it to cure, but 24 hours for it to “fully cure”. I know there is no way it will be “fully cured” in 24 hours. No thread on google or Amazon reviews gave much info on how quickly it dried for them so I decided to check the silicone via the test sample I do on a spare piece of plexiglass & @24 hours it was about 85-90% cured. The Selsil silicone definitely is curing a lot faster than the ASI silicone. (It took 2.5 days for the ASI to be 85-90% cured) My questions are; how long I should wait before doing the water test and also how long should I do the water test for? I have heard from people that waiting a week to dry is over kill, along with doing a water test for a week. What do you think? 
 

1st pic is the listing photo my BIL sent me before he decided to pick it up. 
IMG_5468.jpeg.b4291f3945266fca5666e4b27ce92d1f.jpeg

 

2nd pic I took at my house showing how bad the silicone was. (I took other photos but they won’t upload on this post for some reason. They are showing a solid black image when trying to upload, so this is the best photo I got to show how bad the prior silicone was.)  

IMG_1702.jpeg.a21b80ba73a34ad1eb98d9186b11869c.jpeg

 

3rd/4th pic are screenshots of the ASI Silicone I used in early 2023.

IMG_1719.png.be31699ea0cc9e13b3f42cc5fad466a9.pngIMG_1720.png.3eedc59505709b0e9384b32013e3686b.png


 

5th/6th are the new Silicone I decided to use on the 54gal bow front. 
 

IMG_1717.png.d0e1acab7de7be2f14b60a8dddbe1130.pngIMG_1718.jpeg.719e4cc6e08551fdd57e129fcd4cf1a4.jpeg

 

Edited by MarisaH
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  • 1 month later...
On 3/27/2024 at 11:46 PM, JE47 said:

Have you done the water test yet?

Yes! It held up just fine & is now moved to my BIL house & cycled/stocked. It turned out so well. 

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