---
product_id: 48209530
title: "Gold Label Underwater Sealant, 290 ml, Black"
brand: "gold label"
price: "£34.24"
currency: GBP
in_stock: true
category: "Gold Label"
url: https://www.desertcart.co.uk/products/48209530-gold-label-underwater-sealant-290-ml-black
store_origin: GB
region: United Kingdom
---

# Instant underwater bonding Bonds 8+ surfaces seamlessly Solvent & isocyanate free safe formula Gold Label Underwater Sealant, 290 ml, Black

**Brand:** gold label
**Price:** £34.24
**Availability:** ✅ In Stock

## Summary

> 💧 Seal it once, seal it right—underwater magic for pros!

## Quick Answers

- **What is this?** Gold Label Underwater Sealant, 290 ml, Black by gold label
- **How much does it cost?** £34.24 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/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

- • **Compact & Ready-to-Use:** 290ml tube designed for precision repairs without mess.
- • **Eco-Safe & Fish Friendly:** Protect your pond ecosystem with solvent-free, non-toxic sealant.
- • **Durable Waterproof Shield:** Stops water loss and protects your investment long-term.
- • **Seal Leaks Instantly Underwater:** No downtime, no drying—fix leaks where they happen.
- • **Universal Surface Compatibility:** Works flawlessly on vinyl, glass, ceramic, concrete, and more.

## Overview

Gold Label Underwater Sealant (290ml, black) is a premium, solvent- and isocyanate-free sealant designed for instant, durable repairs underwater. Trusted by pond and aquarium owners, it bonds a wide range of materials including vinyl, glass, ceramic, and concrete, ensuring waterproof protection without harming aquatic life.

## Description

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

## 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 | 5,520 in Garden ( See Top 100 in Garden ) 364 in Garden Décor |
| Brand | Gold Label |
| Colour | Black |
| Compatible Material | Ceramic, Glass, Plastic, Vinyl |
| Customer Reviews | 4.4 4.4 out of 5 stars (907) |
| Global Trade Identification Number | 05060159850036 |
| Item Dimensions | 50 x 50 x 240 millimetres |
| Item Form | Liquid |
| Item Weight | 0.5 Kilograms |
| Manufacturer | Gold Label |
| Manufacturer Part Number | S30 |
| Material | Rubber |
| Model Number | S30 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Style Name | Compact |
| Surface Recommendation | Countertop, Door, Pipe, Tile, Window |
| Unit Count | 290.0 millilitre |
| Water Resistance Level | Waterproof |

## Product Details

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

## Images

![Gold Label Underwater Sealant, 290 ml, Black - Image 1](https://m.media-amazon.com/images/I/61vlIhl9gcL.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.

## 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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**Shop now:** [https://www.desertcart.co.uk/products/48209530-gold-label-underwater-sealant-290-ml-black](https://www.desertcart.co.uk/products/48209530-gold-label-underwater-sealant-290-ml-black)

---

*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-11-14*