Your cart is empty.
Your cart is empty. ASI Aquarium Silicone Sealant has been specifically formulated for the fabrication of fresh and salt-water aquariums. This high modulus component RTV Silicone Sealant forms strong cohesive bonds to glass without the need of primers. The bonds are unaffected by continuous immersion in water and, when fully cured, is non-toxic to fish. ASI Aquarium Silicone Sealant is a non-slump sealant and can be applied to vertical surfaces without flowing or sagging.
High Modulus
Excellent tensile strength
Excellent primerless adhesion to glass
Bond unaffected by continuous immersion in water
Excellent clarity
Because ASIAquarium Silicone Sealant is a 100% silicone sealant, it has excellent resistance to weathering including ozone, ultra-violet radiation and airborne chemicals.
ASI Aquarium Silicone Sealant can be applied to surface temperatures from -18°C to +50°C (0°F to +120°F) and after curing, withstands constant operating temperatures from -57°C to +233°C (-70° F to 450°F).
MATERIAL PREPARATION
For successful bonding, glass must be clean of all dust, dirt and oil. The presence of these contaminants may impede the development of the bond. Therefore, it is essential that the glass be cleaned with suitable and compatible cleansers such as nonoily solvents, diluted solutions of acetic acid or extremely hot water. The cleaned glass should be wiped dry immediately with a clean, lint free cloth or blown dry with hot oil free air.
DO NOT clean glass with soap and water solutions. Soap residue can act as a release agent and result in adhesion failure.
Clean glass should be handled with clean, lint free gloves or equivalent only. Oils from hands and fingers can act a r
Jason
Reviewed in Canada on February 3, 2025
Sealed great
Kimberly M Evans
Reviewed in the United States on September 7, 2024
This silicone is great for even the biggest of jobs. I repaired my 225 gallon tank with this and no leaks now
J O
Reviewed in Canada on September 24, 2024
I scraped off and resealed all of a 40G aquarium that was leaking. One tube was more than enough. It’s been five months so far, no issues. I hope it lasts a very long time.
Austin
Reviewed in the United States on August 4, 2024
I used this when reconditioning my 2006 50 gal aquarium, which has now been setup for a year after application. I used the clear, it's none yellowing and it's still mostly clear. It's actually mostly opaque in the thicker areas and clear in the thinner feathered out areas. It's easy to apply, well maybe not as easy inside of an aquarium, you need to move quickly and not touch the same areas twice. You may also need some paint thinner or similar solvent based thinner to clean up any mess. It's best to just let it dry, and use a new razor blade to scrape any excess off. Just make sure everything is prepped and very clean prior to application. One tube was plenty for the tank, I used 1" blue tape helping with straight lines. It's not necessary, but it does help make things look better. Cures overnight, but I gave it a few days prior to my leak test. They also have black, but I like the clear better on this tank.I'm sure it would be a great silicone for other applications, so use it up before any remaining in an unopened tube cures inside the tube. It's good stuff and well worth the money and your labor!Cheers!
Andrew Kwon
Reviewed in Canada on August 31, 2024
I used this to secure baffles in a sump and install a glass overflow box in an aquarium. Both jobs resulted in a clean water tight fit. There was a time you could just trust regular silicone and you may still be able to in some cases but not worth finding out it has some mold inhibitor in it so just buy aquarium silicone rather than being sorry.
Andrew
Reviewed in the United States on July 31, 2024
Great silicone!!!! I sealed my 220 gal reef tank with it and it is a very good product. Just remember when u start u have to work fast before it starts to set up
cookeemonstr
Reviewed in the United States on July 16, 2024
I had to redo the silicone in my hexagon fish tank. I’ve had this tank for like 15+ years and it sat in storage for a bit. I had to strip the only clear silicone, because it was peeling and looked bad. I think it came out great. My tank has been up for about 2 months now and it’s still holding strong! I’d buy it again if I ever need more. I also think the black looks a lot nicer than the yucky stained clear silicone.
Jamie
Reviewed in the United States on July 12, 2024
I used this to water seal some spray foam I put in my geckos 🦎 tank. The product dried pretty quickly for the application I used it for. I cut and sanded the spray foam so The absorbent product I put it on might have been why it dried so quickly. I also didn’t want the glossy look that you get with product so I tried to dust it with some dry soil, but half was already dry & to had to put another layer to get it tacky enough for the dirt to stick on there. This is not the main use for the product, but it works and my DYI project turned out great! And I have a happy gecko, a humid tank and no soggy decor, so I’m satisfied with this product and will use it again if I ever need to!
Simon
Reviewed in Canada on December 18, 2024
Adhére bien
Tpoma
Reviewed in the United States on November 1, 2024
Bought it a couple years ago to build a terrarium for my redtail boas. It's still holding up great
Justine St-Pierre-Plamondon
Reviewed in Canada on October 12, 2024
Does its job. I redid my tank and no leak, and the fishs are alive and happy.
Christina
Reviewed in the United States on July 3, 2020
Only giving this product 4 stars because of the terrible smell. I've used clear silicone before, and it did not have such a strong smell as this product. I opted for black as I was using it to build a dart frog terrarium, and if any if the soil washed away, I would prefer to only see some black spots in the background. It took literally 4-5 days for the smell to disapate. Do not apply this product in an area where people or pets are forced to breath near, until it has cured. I built my terrarium down in my cellar, with the back door open, and fans on, and I still had a headache for days due to the smell. The smell even seeped upstairs! That being said, the product worked well! I siliconed heavy peices of driftwood, and also rocks to my tank, and nothing has budged since! After foaming in my background, and letting it dry, I then spread silicone all over the background, and dumped cocoa fiber on top. After allowing it to dry for a few days, I then removed any excess, and vacuumed it out. The cocoa fiber has stayed put, and now plants and mosses are growing all over the background! Looks great! So as long as you are aware of the extremely strong, terrible smell, I would recommend this product. Once cured, there is no remaining smell!
RockmodeNick
Reviewed in the United States on January 6, 2020
Worked great - I built a custom aquarium equipment baffle/in tank sump with this stuff. It went on smoothly, dried quickly, and adhesion was awesome. Silicone doesn't properly bind to dry silicone, but this stuff still bonded will enough over the tank beads to seal it, though there's very little strain on those bonds, and it's reinforced all around by good quality bonds between glass and plastic.Important notes on how silicone cures ("drys") -1) beads thicker than 1/8" will effectively NEVER cure, so less is more when you need strong bonds, like in aquariums.2) because curing is not drying, low humidity is not helpful, in fact, it's horribly counterproductive to curing. A cure that will take many days at 15% relative humidity will take a couple days at 30-35% and a day at 50-60%. A humidifier in the room if it's dry where you live will dramatically improve the cure time.3) heat isn't nearly so important as humidity, so don't waste your time going at it with a hair dryer or heat gun, the top skin will form faster, but that's mostly because of the air flow. A gentile fan would be much better. It usually won't cure as fast under really cold conditions, but just aim for room temperature.
Recommended Products
