---
product_id: 48209530
title: "Gold Label Underwater Sealant, 290 ml, Black"
brand: "gold label"
price: "$U3482"
currency: UYU
in_stock: true
reviews_count: 8
category: "Gold Label"
url: https://www.desertcart.uy/products/48209530-gold-label-underwater-sealant-290-ml-black
store_origin: UY
region: Uruguay
---

# Instant underwater bonding Bonds all surfaces Solvent & isocyanate free Gold Label Underwater Sealant, 290 ml, Black

**Brand:** gold label
**Price:** $U3482
**Availability:** ✅ In Stock

## Summary

> 💧 Seal it fast, seal it smart — underwater fixes made effortless!

## Quick Answers

- **What is this?** Gold Label Underwater Sealant, 290 ml, Black by gold label
- **How much does it cost?** $U3482 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/48209530-gold-label-underwater-sealant-290-ml-black)

## Best For

- gold label enthusiasts

## Why This Product

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

## Key Features

- • **Eco-Friendly & Safe:** Solvent and isocyanate free formula ensures fish-safe application for ponds and aquariums.
- • **Compact & Ready-to-Use:** 290 ml gel tube designed for easy application and storage—always be prepared for emergencies.
- • **Durable & Long-Lasting:** Strong adhesive gel that withstands water flow and environmental wear for lasting peace of mind.
- • **Instant Underwater Repair:** Seals leaks and cracks underwater without drying time, saving you costly downtime.
- • **Universal Surface Compatibility:** Bonds seamlessly to butyl rubber, vinyl, glass, plastic, ceramic, stone, concrete, and more.

## Overview

Gold Label Underwater Sealant is a 290 ml black silicone gel designed for instant, waterproof repairs underwater. Its solvent- and isocyanate-free formula is safe for aquatic life, making it ideal for ponds and aquariums. Compatible with a wide range of materials including butyl rubber, vinyl, glass, and concrete, this durable sealant offers a strong, long-lasting bond that withstands water flow and environmental stress. Compact and easy to use, it’s the go-to solution for professional-grade aquatic sealing needs.

## Description

Product Description Gold Label Underwater Sealant 290ml black Box Contains Gold Label Underwater Sealant 290ml black

Review: Top quality for aquatic needs and cheaper than garden centres - Easy to use and it’s very strong it’s been a while since I applied it to a pond waterfall and it’s sealed it nicely and the water flows better with it saved me getting it welded. Strong adhesive for jobs that need it would use it again if I ever needed to.
Review: Underwater sealant. - I have ordered several of these, over the years, I like to keep one in, as I have a pond with a butyl liner, this stuff is brilliant, says what it does on the tube. It's got me out of a scrape, when rats have chewed my liner a few times. Speedy and safe in the water with fish. Easy to use ,but I would recommend gloves as it sticks really well.

## Features

- Contains sensitizing substances. May produce an allergic reaction.
- Pond and Aquarium Sealer
- Fish safe sealer that can be used underwater for instant repairs
- Solvent & Isocyanate Free
- Bonds all surfaces
- Ideal for Butyl Rubber, Vinyl, Glass, Plastic, Ceramic, Stone, Concrete and more

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0038LYLN0 |
| Best Sellers Rank | 7,688 in Garden ( See Top 100 in Garden ) 486 in Garden Décor |
| Brand | Gold Label |
| Colour | Black |
| Compatible Material | Ceramic, Glass, Plastic, Vinyl |
| Country Of Origin | Belgium |
| Customer Reviews | 4.4 out of 5 stars 1,025 Reviews |
| Global Trade Identification Number | 05060159850036 |
| Item Dimensions | 50 x 50 x 240 millimetres |
| Item Form | Gel, Paste |
| Item Weight | 0.5 Kilograms |
| Item dimensions L x W x H | 50 x 50 x 240 millimetres |
| Item height | 24 centimetres |
| Item weight | 0.5 Kilograms |
| Manufacturer | Gold Label |
| Material | Silicone |
| Style | Compact |
| Style Name | Compact |
| Surface Recommendation | Countertop, Door, Pipe, Tile, Window |
| Unit Count | 290.0 millilitre(s) |
| Water Resistance Level | Waterproof |
| Water resistance level | Waterproof |

## Product Details

- **Material:** Silicone
- **Brand:** Gold Label
- **Style:** Compact
- **Item weight:** 0.5 Kilograms
- **Item dimensions L x W x H:** 50 x 50 x 240 millimetres

## Images

![Gold Label Underwater Sealant, 290 ml, Black - Image 1](https://m.media-amazon.com/images/I/619RpUwXlML.jpg)
![Gold Label Underwater Sealant, 290 ml, Black - Image 2](https://m.media-amazon.com/images/I/61B3-znnhFL.jpg)
![Gold Label Underwater Sealant, 290 ml, Black - Image 3](https://m.media-amazon.com/images/I/61Jyx6+0DkL.jpg)
![Gold Label Underwater Sealant, 290 ml, Black - Image 4](https://m.media-amazon.com/images/I/61O5kZbpn9L.jpg)
![Gold Label Underwater Sealant, 290 ml, Black - Image 5](https://m.media-amazon.com/images/I/61ccmXV0GzL.jpg)

## Questions & Answers

**Q: It says on your product Safety that it's " Harmful to aquatic life with long lasting effects." .I don't understand.**
A: No idea about it being harmful. I used it to join two bits of liner that is under an artificial bog.

**Q: I have a 6 inch hairline crack in my fibreglass fish pond, will this fix it?**
A: I haven’t used this product for that purpose but it is supposed to bond layers together and seal joints so may be worth a try.

**Q: Has anybody used it on a glass aquarium. I need to do an underwater repair with the tropical  fish still in the tank.**
A: It will seal underwater and is non toxic. I have used it in a pond. The tube I had was black sealant though.

**Q: Can gold label  underwear  sealantI have  a hole  at the bottom  of my fish pond  do i have  to completely  drain  my pond to fix the  leak**
A: On the container it states that the glue will work underwater, which implies that you don't have to drain the pond.  However, the instructions also tell you to remove all mud, silt and algae.  To do this you have to lower the water level until the damage is exposed so that you can clean up around it.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Top quality for aquatic needs and cheaper than garden centres
*by A***. on 1 September 2025*

Easy to use and it’s very strong it’s been a while since I applied it to a pond waterfall and it’s sealed it nicely and the water flows better with it saved me getting it welded. Strong adhesive for jobs that need it would use it again if I ever needed to.

### ⭐⭐⭐⭐⭐ Underwater sealant.
*by D***G on 13 October 2024*

I have ordered several of these, over the years, I like to keep one in, as I have a pond with a butyl liner, this stuff is brilliant, says what it does on the tube. It's got me out of a scrape, when rats have chewed my liner a few times. Speedy and safe in the water with fish. Easy to use ,but I would recommend gloves as it sticks really well.

### ⭐⭐⭐⭐ Worth the money.
*by A***R on 21 June 2018*

A very good product and has worked to seal the holes in my pond, however anyone who suggests this can be used under water must have strange mystical powers enabling them to do so. I tried using it under an inch or two of water and the sealant just floated away like a sea slug. However, definitely works a dream on fully drained pond even if surface still damp.

## Frequently Bought Together

- Gold Label Underwater Sealant, 290 ml, Black
- TotalPond Waterfall Foam Sealant
- GREAT STUFF 99112849 Smart Dispenser Pond & Stone, 12 oz, Black

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-01-22*