🐟 Seal your aquatic masterpiece with confidence — Wacker 121, where strength meets safety!
Wacker 121 is a premium German-made silicone sealant designed for aquarium construction and repair. With 360 lbs tensile strength, FDA approval for aquatic safety, and a clear, odorless formula, it delivers fast curing and long-lasting waterproof seals ideal for both small and large tanks. Trusted by professionals for over 20 years, it ensures durable, invisible bonding that withstands water pressure without cracking or yellowing.
| ASIN | B08KGVHJJ8 |
| Best Sellers Rank | #28,165 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #74 in Silicone Adhesives |
| Brand | Wacker |
| Brand Name | Wacker |
| Colour | Clear/Transparent |
| Compatible Material | Glass, Stone |
| Container Type | Tube |
| Customer Reviews | 4.3 out of 5 stars 416 Reviews |
| Importer Contact Information | Wacker Chemie |
| Included Components | Nozzle |
| Item Form | Paste |
| Item Package Quantity | 1 |
| Item Type Name | Aquarium Silicone Sealant |
| Item Weight | 420 Grams |
| Manufacturer | Wacker, Wacker |
| Manufacturer Contact Information | Wacker |
| Manufacturer Part Number | WCK121 |
| Material | Silicone |
| Material Type | Silicone |
| Model | WCK121 |
| Number of Pieces | 1 |
| Other Special Features of the Product | Non Toxic, Strong |
| Packer Contact Information | Authorized Seller Taj Products, [email protected] |
| Special Feature | Non Toxic, Strong |
| Specific Uses For Product | Glazing, Industrial Bonding Applications, Aquarium Tank Construction |
| Tensile Strength | 360 Pounds |
| Unit Count | 310 Milliliters |
| Viscosity Level | High |
| Volume | 310 Millilitres |
| Water Resistance Level | Waterproof |
T**R
Go for it. Best aquarium silicone sealant
Very good product 👍
P**R
Aquream silicon
Perfect for glass
H**H
Good quality
“i build 4 feet height 2 feet lenggt tank. The gum is super strong, but it’s very hard to use. It dries very fast—within about 10 minutes it starts getting hard—but once set, the gum is very strong.”
K**S
Good product
One of the best glue. Using this for quite sometime but one thing is if you are a beginner in Aquarium glass making and planning to make a small tank or a medium size tank you have to think before purchasing because there is going to be soo much glue left so plan accordingly or make a bunch of aquarium glass before purchasing.
A**Q
Best silicon ever in the market, for aquarium.
Great product, dry instantly and very strong bond. My 400L aquarium seems pretty strong with this. Even you can't see any wobble of Glass when pulls or push like other silicon glues. But you need to carefully apply this one. Highly professional. I had used 2 bottle. After that i bought another astral brand silicon one from local shop, then only i realised about the quality of this wacker product, it's 100% greater than any other product in the market. The astral silicon i brought from the shop had a worst smell also it takes more than 24 hrs for dry. And also not having water holding capacity. But this one is great. Only cons i had was they don't sell smaller ones. If i need a 50ml or 100ml i have no choice for choosing this one. Because this product can't be stored for long after the seal broken.
R**J
Best aquarium silicone
Great Product. Best for building aquariums. Fast drying, so you need to work fast.
A**H
Good
Good
V**J
Received a soon to be expired product
Received a silicone glue which is about to expire in 2 months, and it's. Big can
Trustpilot
2 months ago
1 month ago