---
product_id: 12312078
title: "Black Aquarium Silicone Sealant - 10.2 Fluid oz Cartridge"
brand: "gordon glass co."
price: "€ 39.47"
currency: EUR
in_stock: true
reviews_count: 8
category: "Gordon Glass Co."
url: https://www.desertcart.sk/products/12312078-black-aquarium-silicone-sealant-10-2-fluid-oz-cartridge
store_origin: SK
region: Slovakia
---

# Waterproof & fish-safe bonds Wide temp range -57°C to +233°C High modulus RTV silicone Black Aquarium Silicone Sealant - 10.2 Fluid oz Cartridge

**Brand:** gordon glass co.
**Price:** € 39.47
**Availability:** ✅ In Stock

## Summary

> 🖤 Seal it like a pro—strong, sleek, and fish-friendly!

## Quick Answers

- **What is this?** Black Aquarium Silicone Sealant - 10.2 Fluid oz Cartridge by gordon glass co.
- **How much does it cost?** € 39.47 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/12312078-black-aquarium-silicone-sealant-10-2-fluid-oz-cartridge)

## Best For

- gordon glass co. enthusiasts

## Why This Product

- Trusted gordon glass co. brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Non-Slump Formula:** Applies cleanly on vertical surfaces—no sagging or dripping.
- • **UV & Weatherproof:** Resists ozone, UV rays, and airborne chemicals for long-lasting clarity.
- • **Primerless Glass Bonding:** Strong adhesion without extra prep—save time, skip the hassle.
- • **Non-Toxic & Aquarium Safe:** Fully cured sealant is 100% safe for fish and aquatic life.
- • **Extreme Temperature Resistance:** Withstands from freezing cold to scorching heat—durability you can trust.

## Overview

The Black Aquarium Silicone Sealant by ASI is a high modulus RTV silicone designed for fresh and saltwater aquariums. It bonds strongly to glass without primers, remains waterproof and non-toxic to fish after curing, and resists sagging on vertical surfaces. With an impressive temperature tolerance from -57°C to +233°C and excellent resistance to UV and weathering, it ensures durable, clear, and safe aquarium seals that last.

## Description

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 ModulusExcellent tensile strengthExcellent primerless adhesion to glassBond unaffected by continuous immersion in waterExcellent clarityBecause 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 PREPARATIONFor 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

Review: Works great for aquariums! - 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!
Review: High quality product - Used this to reseal a fish tank. Ended up working out great! Dries pretty quickly, so be prepared to move quickly.

## Features

- 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.
- 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).
- Formulated for use with fresh and salt-water aquariums or a Vivarium

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00EZB2MDI |
| Best Sellers Rank | #6,367 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #18 in Silicone Adhesives |
| Brand | Gordon Glass Co. |
| Brand Name | Gordon Glass Co. |
| Color | Black |
| Compatible Material | Glass |
| Container Type | Can, Cartridge |
| Customer Reviews | 4.7 out of 5 stars 1,700 Reviews |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Weight | 0.8 Pounds |
| Manufacturer | ASI |
| Material | Silicone |
| Material Type | Silicone |
| Model | 35133524 |
| Other Special Features of the Product | Strong |
| Special Feature | Strong |
| UPC | 608819339948 |
| Unit Count | 10.2 Fluid Ounces |
| Viscosity | High Viscosity |
| Volume | 295.74 Milliliters |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** Gordon Glass Co.
- **Material:** Silicone
- **Item Form:** Liquid
- **Special Feature:** Strong
- **Color:** Black

## Images

![Black Aquarium Silicone Sealant - 10.2 Fluid oz Cartridge - Image 1](https://m.media-amazon.com/images/I/61ncKstm1zL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: could this be used on panda plastic (poly film) i have a floor/wall covered with panda and want to seal the crack where the floor/wall meet**
A: Our black caulk will fill your crack and then some. In other words, it'll work just fine.

**Q: I placed travertine in my aquarium.  Will thus seal it so water will not get under?**
A: As long as the  material  You are putting in the aquarium is NOT porous and you make sure any openings are closed up this should work for you. Of course how much you use and the depth of your aquarium are factors as well as if you don’t apply enough and if one has a big tank the pressure on the seal could brake.
I use this to make retaining walls for landscaping my aquariums and its been working great for me.

**Q: Will this adhere to cured silicone. I have a spot that seems to be cosmetic and would like to add more.**
A: It will - but it wouldn't be effective. I would scrape off the bad section and apply the new silicone.

**Q: could this seal pvc to abs plastic?**
A: Yes it will. The silicone will adhere clean smooth surfaces.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great for aquariums!
*by H***R 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!

### ⭐⭐⭐⭐⭐ High quality product
*by A***R on January 17, 2026*

Used this to reseal a fish tank. Ended up working out great! Dries pretty quickly, so be prepared to move quickly.

### ⭐⭐⭐⭐⭐ Works as needed and dries pretty quickly.
*by J***E 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!

## Frequently Bought Together

- Black Aquarium Silicone Sealant - 10.2 Fluid oz Cartridge
- GREAT STUFF 99112849 Smart Dispenser Pond & Stone, 12 oz, Black
- Clear Aquarium Silicone Sealant - 10.2 Fluid oz Cartridge

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.sk/products/12312078-black-aquarium-silicone-sealant-10-2-fluid-oz-cartridge](https://www.desertcart.sk/products/12312078-black-aquarium-silicone-sealant-10-2-fluid-oz-cartridge)

---

*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-14*