Silicone Sealant | GE 100% Silicone | What Aquarium Glass Silicone to Use?


Hey guys, Devon here from American Aquarium,
how you doing. Today we need to talk about silicone. I’m talking about the aquarium specific silicone
from American Sealants. Highly recommended to you from AAP. Okay, one of the most popular topics in the
hobby, I got to repair my tank, I got a crack, I want to build my own aquarium. What silicone do I use. Most time than not, you;’ll see people recommend
just recommend GE 100% silicone from the hardware store. I’m here to recommend to you aquarium silicone,
meant for an aquarium. Okay, what’s the difference this and other
silicone. First it’s FDA approved. What’s that mean? It’s safe enough to be around our food, we
could even eat it, it means it safe enough to be around our fish. Also, it’s meant to handle heat swings, so
when our aquarium heats up and goes down, it’s not going to degrade the silicone. It’s also a slow curing silicone, which means
it’s going to be longest lasting, which is going to be best for us. Lastly, when you purchase aquarium silicone
and not just GE 100% silicone, you’re purchase goes to actually helping the hobby. You’re making a purchase that actually the
money you spend on the silicone back into the hobby and keeps it moving forward. Alright guys, so we’re going to recommend
to you, Aquarium Sealants, from AAP, highly recommended. It’s going to come in clear black, two more
popular colors. Really appreciate it, check it out. Make sure to like, subscribe, share with your
friends, have a good weekend…

18 thoughts on “Silicone Sealant | GE 100% Silicone | What Aquarium Glass Silicone to Use?

  1. Wow, another product I purchased from your website this year. I bought it because it actually said "100% Aquarium Safe". Good that you guys are properly informing the masses about it, Thank You.

  2. OH OH!! I have a request!!!

    Can Devon demonstrate buffin an acrylic tank???

    I'd wanna see how he does it. 🙂

  3. Well, that was weak. It wasn't even an answer.
    Here's some actual facts about silicon: http://www.marsh-reef.org/marine-and-reef-general-discussion/46139-silicone-best-suited-reefing-diy-applications-2.html
    I just spent some time comparing technical sheets of various types of silicone. Among those were: Glazing, Neutral (GE Silicone 2 equivalent), Universal (GE Silicone 1 equivalent) and Aquarium silicone. And while Universal silicone has slightly lower physical properties (I doubt that matters if your aquarium seems can handle 250 or 400 Celsius), the Glazing silicone has THE EXACT SAME properties and chemical composition as Aquarium silicone.
    Ergo:
    1. Aquarium Silicone is just re-labelled Glazing Silicone, made with sole purpose to charge the hobbyists extra money: "Hey, they care about their precious fishes, so lets squeeze more out of them!"
    2. While Glazing silicone might be stronger than Universal silicone, I doubt it would ever be an issue even in large tanks. "The DIY King" (most prolific aquarium youtuber I know) uses GE1 silicone exclusively, and after seeing what he did and built with it and how long he's been using it, I would use it too, if I lived in North America.
    3. ALL silicone is safe for aquatic life once cured. All silicone is aquatic life unsafe before it is cured.

  4. Thanks a lot you answered my question I need some silicone to seal inside a water container where I drink my water out of

  5. To be fair, if the companies in the hobby weren't so greedy and didn't radically overcharge for everyday products, more people would absolutely choose to support aquarium specific items rather than hardware store products. Of course that's just my opinion.. I'm going to check out your product now, thanks for the info.

  6. GE Silicone 1 is FDA compliant under 21 Code of Federal Regulations part 177.2600 and GE specifies the same full cure time as the competitor. After reviewing the MSDS of both products, they are both just as nasty until they cure. I'll use the less expensive stuff, thanks.

  7. When I first watched this video I thought it was just a sales pitch, I bought a few tubes of the ASI silicone and it’s awesome!!! This silicone is so much better than GE or anything else I tried. Can’t stress enough how great this product is.

  8. A significant reason you should use this stuff compared to GE012A aka GE 1 is Octamethylcyclotetrasiloxane aka D4. GE 1 or GE012A has 1-5% by weight. Ever have one tank that nothing survives in? It probably had that 5% or worse of D4. ASI has <.2% by weight. Studies on D4 have shown extremely low quantities (we are talking µg / liter) can limit growth, reproduction, and decrease health in fish and it isn't good for us either. It also bioaccumulates. Once these silicones cure the risk is lessened, but D4 DOES still leach into water and even fatty tissues. . . .

    To preempt the . . BUT I kept. . . . the stuff is bad for your fish at low doses, not immediately fatal at the levels leached into your aquarium. Just like you can drink water with high levels of lead or even arsenic for years and have no trouble, but eventually. . . Yes there are many studies that show D4 leaches from silicone. None that I know of that involve aquariums though. Most studies are medical devices, implants, IV tubing, baby bottle nipples, water storage, etc. Guess aquariums aren't that much of a priority for toxicologists.

  9. About GE 100% Silicone 1, I contacted Momento (the manufacturer who makes it for GE), they said "It is not designed for aquarium/below water line use because it may fail when submerged for continual use and harm your fish" Do you feel lucky?

  10. Avoid GE I Silicone for aquariums as it contains 1-5% D4 (octamethylcyclotetrasiloxane), which is NOT good for fish. D4 leaches into water and bioaccumulates, limits growth, reproduction, etc. Aquarium-grade silicones have <0.2% D4 by weight. At the time I wrote this, you can get a 10.2 oz cartridge of ASI Aquarium Silicone for $8.49 on Amazon with free shipping, which is only ~$3 more than GE I Silicone, so the price difference is negligible.

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