ChicagoDiscus.com     Cafepress Store

Results 1 to 10 of 10

Thread: Silicone caulk goes bad

  1. #1
    Administrator brewmaster15's Avatar
    Join Date
    Apr 2002
    Location
    Northford,CT,USA
    Posts
    26,960

    Default Silicone caulk goes bad

    Well I learned something new. I never knew Silicone caulk goes bad but apparently it does. When it does it no longer cures and hardens. I just found this out the hardway. A tank I sealed yesterday is still wet. Search of the internet shows this is indeed what happens.

    Never thought a sealed tube of caulk would go bad. Just checked the tube in the garbage and sure enough date stamp says.. best buy 01/2022. Bit ticked because I just bought that a few months ago.

    So now I need to remove all that wet caulk.. clean it up and reseal. What a royal pain.

    Lesson to all.. check your caulk when you buy it and before you use it. Im really surprised by this as I know I used caulk in the past that was laying around a few years.

    Researched further showing mfg say 1-2 years shelf life.

    What a bummer.
    Last edited by brewmaster15; 03-31-2024 at 10:23 AM.
    AquaticSuppliers.com Freeze Dried BlackWorms and other foods your Discus will Love!!!


    >>>>>I am a science guy.. show me the science minus the BS

    Al Sabetta
    Simplydiscus LLC Owner
    Aquaticsuppliers.com


    I take Pics.. click here for my Flickr images

  2. #2
    Administrator brewmaster15's Avatar
    Join Date
    Apr 2002
    Location
    Northford,CT,USA
    Posts
    26,960

    Default Re: Silicone caulk goes bad

    Now I am going to be leery always. I just bought a 4 pack of caulk earlier this week...
    Received it yesterday and checked the date..

    Made..
    20240331_085614.jpg

    Expires
    20240331_085619.jpg

    I buy in bulk to save $$ but no way I will use 4 tubes in the next 4 months.
    AquaticSuppliers.com Freeze Dried BlackWorms and other foods your Discus will Love!!!


    >>>>>I am a science guy.. show me the science minus the BS

    Al Sabetta
    Simplydiscus LLC Owner
    Aquaticsuppliers.com


    I take Pics.. click here for my Flickr images

  3. #3
    Administrator and MVP Dec.2015 Second Hand Pat's Avatar
    Join Date
    Sep 2010
    Location
    Central Florida
    Posts
    31,794
    Real Name
    Pat

    Default Re: Silicone caulk goes bad

    Oh man Al, that sucks. I have four tubes of black Silicone and hope they are good! I thought Silicone was good forever
    Pat
    Your discus are talking to you....are you listening


  4. #4
    Administrator jeep's Avatar
    Join Date
    Jul 2002
    Location
    O.P. KS
    Posts
    6,624
    Real Name
    Brian

    Default Re: Silicone caulk goes bad

    What a mess. I've seen it harden in the tube but I had no idea it wouldn't cure after a certain time...

  5. #5
    Administrator brewmaster15's Avatar
    Join Date
    Apr 2002
    Location
    Northford,CT,USA
    Posts
    26,960

    Default Re: Silicone caulk goes bad

    Its unbelievably difficult to clean up. I used a glove to get the bulk.. smeared everywhere...tried alcohol , didn't work. Tried vineger..nope. used a razor which kept slipping out if my hands.. some reports said acetone..which worried me because of the plastic frame. But thats what I used... it seemed to work after alot of rags and acetone.I washed the tank with alcohol let dry and just resealed. I don't know if will hold. Time will tell. The first sealing was picture perfect.. this time it looks like junk... I made the bead bigger in the hopes that it will help hold given the history. All this work for a green water tank.. what a pain.
    AquaticSuppliers.com Freeze Dried BlackWorms and other foods your Discus will Love!!!


    >>>>>I am a science guy.. show me the science minus the BS

    Al Sabetta
    Simplydiscus LLC Owner
    Aquaticsuppliers.com


    I take Pics.. click here for my Flickr images

  6. #6
    Homesteader jwcarlson's Avatar
    Join Date
    Jan 2022
    Location
    Iowa
    Posts
    1,014
    Real Name
    Jacob

    Default Re: Silicone caulk goes bad

    Yep, I had some that I bought from Amazon that came in expired. I ended up just buying GE silicone 1 at HD instead. Wet silicone is a nightmare to clean up.

  7. #7
    Registered Member
    Join Date
    Dec 2021
    Location
    Long Island, New York
    Posts
    118
    Real Name
    Jim

    Default Re: Silicone caulk goes bad

    What a nightmare. I never looked for exp dates. Will do in the future. Never had much luck resealing tanks, they always leaked afterwards usually days after sealing when restocked with fish.

  8. #8
    Registered Member
    Join Date
    Jan 2024
    Posts
    7

    Default Re: Silicone caulk goes bad

    Hey Al, I was just told by one of the LFS that the tanks that are sealed with the black silicone are newer tanks if your buying one and the best silicone, is this legit, with so many new tanks of today still they show clear silicone still, and if the black silicone is the cat's meow, what name does it go under, I would like to reseal a tank and would get some and try it, ever heard of it. Thanks

  9. #9
    Administrator brewmaster15's Avatar
    Join Date
    Apr 2002
    Location
    Northford,CT,USA
    Posts
    26,960

    Default Re: Silicone caulk goes bad

    Quote Originally Posted by Marty View Post
    Hey Al, I was just told by one of the LFS that the tanks that are sealed with the black silicone are newer tanks if your buying one and the best silicone, is this legit, with so many new tanks of today still they show clear silicone still, and if the black silicone is the cat's meow, what name does it go under, I would like to reseal a tank and would get some and try it, ever heard of it. Thanks
    Hi Marty,
    I have a feeling that LFS is mis-informed. Most glass tanks use clear silicone caulk as its less obtrusive than Black visually. I was just at petco this past week picking up a few tanks and all have clear silicone.I have never used a black silicone before, but I can't imagine it would be meaningfully different than clear.



    I have used this brand..

    Apel

    apel.jpg

    It worked great. The only reason I didn't buy it this time was it was not in stock.



    hth, al
    AquaticSuppliers.com Freeze Dried BlackWorms and other foods your Discus will Love!!!


    >>>>>I am a science guy.. show me the science minus the BS

    Al Sabetta
    Simplydiscus LLC Owner
    Aquaticsuppliers.com


    I take Pics.. click here for my Flickr images

  10. #10
    Platinum Member Jandiscus's Avatar
    Join Date
    Jan 2012
    Location
    Midland Michigan
    Posts
    160

    Default Re: Silicone caulk goes bad

    Quote Originally Posted by Marty View Post
    Hey Al, I was just told by one of the LFS that the tanks that are sealed with the black silicone are newer tanks if your buying one and the best silicone, is this legit, with so many new tanks of today still they show clear silicone still, and if the black silicone is the cat's meow, what name does it go under, I would like to reseal a tank and would get some and try it, ever heard of it. Thanks
    Hi Marty - the black in the silicone is carbon black which has no other functional property than turning it black.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Cafepress