Replace the cilicone or not?

Sgt Jonny Cat · 04/13/2018, 11:18 AM

Hello all, I have my used 150 and I was cleaning it all up in my garage and got to wondering if I should remove the silicone and replace it with new silicone. with a closer look, I noticed the overflow weirs are silicone with black silicone to the bottom of the tank. The black stuff goes right over the clear silicone on the bottom of the tank. The clear silicone on the bottom looks like its in great condition, while the side silicone has a few marks on it where I'm sure got nicked with a scraper. I'm looking at 3 options:

1. Do nothing as this tank had water in it 2 weeks ago?

2. Leave the bottom silicone and overflows alone and just re silicone the corner joints?

Remove everything and start new with new silicone for the overflow weirs as well? (With this option I have read that silicone wont stick to silicone so I should just use clear stuff on the overflows as well?)

Seems kind of confusing I know but I would appreciate your input.

Thanks...

mcgyvr · 04/13/2018, 12:07 PM

If its in good condition I wouldn't mess with it..
The inner corner fillet silicone is really just to protect the main structural seals (the silicone between the glass edges)

A whole tank silicone job is quite a project and you need to do it all or nothing really..

I'd leak test and examine the structural seals.. If all looks good there I would use as is..

And FYI.. Pictures would have been very helpful..

Sgt Jonny Cat · 04/13/2018, 01:08 PM

Quote:

Originally Posted by mcgyvr

If its in good condition I wouldn't mess with it..
The inner corner fillet silicone is really just to protect the main structural seals (the silicone between the glass edges)

A whole tank silicone job is quite a project and you need to do it all or nothing really..

I'd leak test and examine the structural seals.. If all looks good there I would use as is..

And FYI.. Pictures would have been very helpful..

Thanks for the input. Very appreciated.

04/13/2018, 11:18 AM	#1
Sgt Jonny Cat Registered Member Join Date: Mar 2014 Location: North of Boston Ma. Posts: 685	Replace the cilicone or not? Hello all, I have my used 150 and I was cleaning it all up in my garage and got to wondering if I should remove the silicone and replace it with new silicone. with a closer look, I noticed the overflow weirs are silicone with black silicone to the bottom of the tank. The black stuff goes right over the clear silicone on the bottom of the tank. The clear silicone on the bottom looks like its in great condition, while the side silicone has a few marks on it where I'm sure got nicked with a scraper. I'm looking at 3 options: 1. Do nothing as this tank had water in it 2 weeks ago? 2. Leave the bottom silicone and overflows alone and just re silicone the corner joints? Remove everything and start new with new silicone for the overflow weirs as well? (With this option I have read that silicone wont stick to silicone so I should just use clear stuff on the overflows as well?) Seems kind of confusing I know but I would appreciate your input. Thanks... __________________ In the process of putting together a 150 gallon mixed reef. Ill keep you posted. Current Tank Info: 55 Gallon

04/13/2018, 12:07 PM	#2
mcgyvr Registered Member Join Date: Sep 2003 Location: North Carolina Posts: 20,050	If its in good condition I wouldn't mess with it.. The inner corner fillet silicone is really just to protect the main structural seals (the silicone between the glass edges) A whole tank silicone job is quite a project and you need to do it all or nothing really.. I'd leak test and examine the structural seals.. If all looks good there I would use as is.. And FYI.. Pictures would have been very helpful.. __________________ Who me?