---
product_id: 3030205
title: "Aqueon Aquarium Silicone Sealant Black 3 Ounces"
brand: "aqueon"
price: "€ 21.04"
currency: EUR
in_stock: true
reviews_count: 13
category: "Aqueon"
url: https://www.desertcart.sk/products/3030205-aqueon-aquarium-silicone-sealant-black-3-ounces
store_origin: SK
region: Slovakia
---

# 100% waterproof seal sleek black silicone color permanently flexible, no cracks Aqueon Aquarium Silicone Sealant Black 3 Ounces

**Brand:** aqueon
**Price:** € 21.04
**Availability:** ✅ In Stock

## Summary

> 🖤 Seal your aquatic world with confidence and style!

## Quick Answers

- **What is this?** Aqueon Aquarium Silicone Sealant Black 3 Ounces by aqueon
- **How much does it cost?** € 21.04 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/3030205-aqueon-aquarium-silicone-sealant-black-3-ounces)

## Best For

- aqueon enthusiasts

## Why This Product

- Trusted aqueon brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Aquarium Safe:** 100% non-toxic formula, perfect for freshwater & saltwater tanks.
- • **Flexible Durability:** Remains flexible over time—no cracking or shrinking, guaranteed.
- • **Leakproof Confidence:** Creates a permanent, watertight seal that stops leaks instantly.
- • **Effortless Application:** Smooth, easy-to-use liquid form for precise sealing every time.
- • **Versatile Compatibility:** Bonds seamlessly with glass, metal, plastic, and rubber surfaces.

## Overview

Aqueon Aquarium Silicone Sealant Black (3 oz) delivers a professional-grade, waterproof, and permanently flexible seal designed specifically for aquariums. Its non-toxic formula ensures safety for all aquatic life, while the sleek black color blends perfectly with tank frames. Compatible with multiple materials, it offers an easy application and long-lasting leak protection trusted by hobbyists and pros alike.

## Description

100% Silicone aquarium sealant is easy to apply to stop leaks. The high-strength silicone creates a permanent water-tight seal that will not crack or shrink. It’s formulated to be non-toxic, making it perfect for use on all aquariums.

Review: Saves My Pond! - I use this seasonally for a bit of an unconventional use: sealing the lid on my biological pond filter to make sure it stays completely airtight. I have a homebrew system made out of a five-gallon bucket with a solar-powered 12v pump inside that pipes the water out to a waterfall cascade. Water is drawn into the bucket purely because of the suction this creates inside the hard, rigid walls of the bucket, so for this to work that means the bucket has to be perfectly airtight. The silicone aquarium sealant works -perfectly- for this. I put a small bead around the edge of the screw-on lid (the kind they make for storing grain and pantry goods in such buckets) and when I engage the pump it pulls the sealant slightly down into the threads good and tight. The key is to only screw the lid on until it is barely tight, not very tight. When I want to open up the filter, I simply pull off the sealant from the edges, unscrew the lid, and apply it again when I am ready to close it. It does mean I go through a fair amount of sealant on a yearly basis but it's 100% pure peace of mind knowing that it'll keep our little family pond clean and easy to maintain without having to shell out the many hundreds of dollars for fancy canisters with specialized pumps and filters. One thing to note is that you -do- want gloves on to apply this, but it's not a completely loss if you get some on your skin. This sealant does not burn. I found out to my dismay that the pet store sealant BURNS if you accidentally get some on your skin. This stuff is just a pain to wash off. It is actually easier to get off skin if you let it dry and peel it off afterwards. I have -not- found a way to get it out of my clothing at all once it dries, so don't get it on clothes! My only qualm with this particular sealant is that the price does seem to fluctuate quite a bit. Sometimes getting the three-packs from other listings on desertcart is a better price overall. Still, very much recommended!
Review: Works great on metal framed vintage aquariums. - I wanted to use this silicone sealant on my vintage metal framed fish tank. Easy to use and work with. Once cured there have been no leaks.

## Features

- Waterproof seal stops leaks
- Permanently flexible; does not crack or shrink
- Easy to apply long-lasting bond
- 100% Non-toxic silicone for use on freshwater or saltwater aquariums
- Black silicone color - also available in clear silicone

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0002ASD2U |
| Best Sellers Rank | #32,969 in Pet Supplies ( See Top 100 in Pet Supplies ) #306 in Aquarium Water Treatments |
| Brand | Aqueon |
| Brand Name | Aqueon |
| Color | Black |
| Compatible Material | Glass, Metal, Plastic, Rubber |
| Customer Reviews | 4.6 out of 5 stars 885 Reviews |
| Global Trade Identification Number | 00015905650045 |
| Included Components | Aqueon Aquarium Silicone Sealant Black 3 Ounces |
| Item Dimensions | 2 x 2 x 5.75 inches |
| Item Form | Liquid Ready to Use |
| Item Type Name | Aqueon Aquarium Silicone Sealant |
| Item Weight | 3.5 ounces |
| Item dimensions L x W x H | 2 x 2 x 5.75 inches |
| Manufacturer | Central Garden & Pet |
| Material | Silicone |
| Material Type | Silicone |
| Model | 100165004 |
| Number of Items | 1 |
| Part Number | 100165004 |
| Style | Standard |
| Style Name | Standard |
| UPC | 015905650045 |
| Unit Count | 3 Ounce |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Aqueon
- **Item Weight:** 3.5 Ounces
- **Item dimensions L x W x H:** 2 x 2 x 5.75 inches
- **Material:** Silicone
- **Style:** Standard

## Images

![Aqueon Aquarium Silicone Sealant Black 3 Ounces - Image 1](https://m.media-amazon.com/images/I/81-cU4tdA+L.jpg)
![Aqueon Aquarium Silicone Sealant Black 3 Ounces - Image 2](https://m.media-amazon.com/images/I/71W5WsVtLLL.jpg)
![Aqueon Aquarium Silicone Sealant Black 3 Ounces - Image 3](https://m.media-amazon.com/images/I/71pBZzqQyrL.jpg)
![Aqueon Aquarium Silicone Sealant Black 3 Ounces - Image 4](https://m.media-amazon.com/images/I/81WyGx-4IXL.jpg)

## Questions & Answers

**Q: Can this be used to fix a fountain in a reptile terrarium**
A: Yes, but keep in mind everything has to be completely clean and dry before applying it. Also keep in mind it is a sealer, not an adhesive, so it won't hold broken pieces together.

**Q: I have a crack in the glass on the bottom of my tank. Will this seal it?**
A: If tank has a frame beneath it's tricky. The silicone will seal it providing you prep the contact area. You must clean away the old sealant & calcium buildup;this is for outside & inside the tank.
It requires a one inch bead on both sides of the glass, *then two inches onto the old silicone - both sides of the crack. Mash/feather new sealant beyond each side of old seal.*

**Q: Can I use this to fix leaks in a horse trough around the heating element? Will it hold it's integrity against freezing temperatures?**
A: It should. Just make sure all surfaces are thoroughly cleaned and dried before application. Silicone can withstand sub-freezing temperatures and very high heat. After application you should wait 1 week before using the trough though.

**Q: Can I use this to bond glass with acrylic for the overflow to my tank?**
A: You sure can, I use it for that very same purpose.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Saves My Pond!
*by M***S on January 24, 2019*

I use this seasonally for a bit of an unconventional use: sealing the lid on my biological pond filter to make sure it stays completely airtight. I have a homebrew system made out of a five-gallon bucket with a solar-powered 12v pump inside that pipes the water out to a waterfall cascade. Water is drawn into the bucket purely because of the suction this creates inside the hard, rigid walls of the bucket, so for this to work that means the bucket has to be perfectly airtight. The silicone aquarium sealant works -perfectly- for this. I put a small bead around the edge of the screw-on lid (the kind they make for storing grain and pantry goods in such buckets) and when I engage the pump it pulls the sealant slightly down into the threads good and tight. The key is to only screw the lid on until it is barely tight, not very tight. When I want to open up the filter, I simply pull off the sealant from the edges, unscrew the lid, and apply it again when I am ready to close it. It does mean I go through a fair amount of sealant on a yearly basis but it's 100% pure peace of mind knowing that it'll keep our little family pond clean and easy to maintain without having to shell out the many hundreds of dollars for fancy canisters with specialized pumps and filters. One thing to note is that you -do- want gloves on to apply this, but it's not a completely loss if you get some on your skin. This sealant does not burn. I found out to my dismay that the pet store sealant BURNS if you accidentally get some on your skin. This stuff is just a pain to wash off. It is actually easier to get off skin if you let it dry and peel it off afterwards. I have -not- found a way to get it out of my clothing at all once it dries, so don't get it on clothes! My only qualm with this particular sealant is that the price does seem to fluctuate quite a bit. Sometimes getting the three-packs from other listings on Amazon is a better price overall. Still, very much recommended!

### ⭐⭐⭐⭐⭐ Works great on metal framed vintage aquariums.
*by W***Y on January 2, 2026*

I wanted to use this silicone sealant on my vintage metal framed fish tank. Easy to use and work with. Once cured there have been no leaks.

### ⭐⭐⭐⭐⭐ I had no problems with this product.
*by S***X on June 30, 2026*

There are some corners on my True Mfg GDM-35 refrigerator door that I believe were sealed using this or a similar product. I believe the product I bought worked fine for that purpose. I have not used it for anything else.

## Frequently Bought Together

- Aqueon Aquarium Silicone Sealant Black 3 Ounces
- Aqueon Silicone Sealant Clear 3 Ounces
- GREAT STUFF 99112849 Smart Dispenser Pond & Stone, 12 oz, Black

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-07-28*