Wacker 121 Professional Aquarium, Fish Tank Silicone Sealant | Small to Large Tanks | Bonding, Gap Filling & Repair | Safe for Fish (310ml - Clear)

Very good product,,,,good bonding,,,,,I used between glass and fiber glass

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.

I haven't heard usage of the product thanks

Badhiya silicon hai Fish tank ke liye, rubber bhi sticking k baadme sahi thik rehata hai.

The media could not be loaded. We did 2 tanks with this . Nubies. Struggled with high viscosity . 1st tank leaked. 2 nd didn't . Not for 1st timmers. Sealed the tip , used it after 5 days to build another nano tank. With proper procedure , the tank leaked from all the sides. For one time use only. Bought it with extra shipping charges. Not worth the price. Not for nubies at least.And don't think this'll be usefull to professional . This glue just last for 30- 40 secs. Max before transforming into rubber. You can not do any changes in glass position after you put it on.Not for injection method too.Glue is strong i would say compared to other brands but comes with lots of cons.And self destruction starts after you cut it open. You can not use the leftover . Nope.Update after 5 months . Silicone is super strong. But requires expert hands to handle. Will be purchasing more .

This is the best silicon for aquariums. Far better than dowsil or any other brand. Its thick, quick to cure and does not smell half as bad as other silicon brands do. If you want to build aquariums (big or small) or any sort to water sealing DIY project, it even seals windows quite strongly. Price is a bit expensive but the quality is the best out there. If you can afford it, purchase without hesitation

This silicon is really thick and High viscosity also little hard because glass need heavy force to traceout air gaps. It doesn't standout other aquarium silicon brand though it is mentioned 'aquarium silicon' .it's heavy mess because quality of silicon is such that it need too much beed and so much waste out of it, so more cost and moderate amount of beed leaves air gap. I will update on condition of silicon after a month strength might be good.