--- product_id: 48209530 title: "Gold Label Underwater Sealant, 290 ml, Black" brand: "gold label" price: "287.20 DT" currency: TND in_stock: true reviews_count: 13 category: "Gold Label" url: https://www.desertcart.tn/products/48209530-gold-label-underwater-sealant-290-ml-black store_origin: TN region: Tunisia --- # Instant underwater bonding Bonds 8+ surface types Solvent & isocyanate free Gold Label Underwater Sealant, 290 ml, Black **Brand:** gold label **Price:** 287.20 DT **Availability:** ✅ In Stock ## Summary > 💧 Seal it fast, seal it smart — pond perfection guaranteed! ## Quick Answers - **What is this?** Gold Label Underwater Sealant, 290 ml, Black by gold label - **How much does it cost?** 287.20 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/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 fits in your toolkit for emergency fixes anytime. - • **Durable & Flexible Seal:** Silicone-based gel ensures long-lasting, crack-resistant repairs. - • **Eco-Friendly & Fish Safe:** Non-toxic formula keeps aquatic life safe while you fix. - • **Instant Underwater Repair:** Seals leaks on contact, even underwater—no drying wait. - • **Universal Surface Compatibility:** Works seamlessly on vinyl, glass, ceramic, concrete & more. ## Overview Gold Label Underwater Sealant is a 290ml black silicone gel designed for instant, waterproof repairs on multiple surfaces including vinyl, glass, and concrete. Solvent and isocyanate free, it’s safe for fish and ideal for ponds and aquariums. Trusted by thousands, it offers durable, flexible bonding that works underwater, making emergency fixes quick and hassle-free. ## Description Product Description Gold Label Underwater Sealant 290ml black Box Contains Gold Label Underwater Sealant 290ml black 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. Review: Amazing product and works perfectly - This product is amazing and I wish I discovered it sooner. My pond has always had a slow leak since I bought the property and it was already there and it was annoying, but I lived with it. However recently I was working by the side of the pond and dropped a saw which tore big jagged holes in the liner.... I was mortified and the level dropped by half within hours. After lots of research and not much luck and almost resided to the fact I was going to have a mammoth task ahead redoing the pond, I discovered this product. Skeptical but I tgought for the price, worth a shot. Amazing. Easy to apply, does exactly what it says on the tube and whilst I did it, I went around and covered a few tiny holes at top and pond is the fullest and best it's looked since I have moved in and staying full. For the large holes from the saw teeth, I bought a tiny pond liner from here, which was cheap and cut a small patch, like repairing a bike tyre and it's worked a treat. £20 spent in total and pond like new. ## 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 | 7,810 in Garden ( See Top 100 in Garden ) 572 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 896 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 weight | 0.5 Kilograms | | Manufacturer | Gold Label | | Manufacturer Part Number | S30 | | Material | Silicone | | Model Number | S30 | | Number of Items | 1 | | Style | Compact | | Style Name | Compact | | Surface Recommendation | Countertop, Door, Pipe, Tile, Window | | Unit Count | 290.0 millilitre | | Water Resistance Level | Waterproof | | 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:** Silicone - **Style:** Compact ## Images ![Gold Label Underwater Sealant, 290 ml, Black - Image 1](https://m.media-amazon.com/images/I/61vlIhl9gcL.jpg) ![Gold Label Underwater Sealant, 290 ml, Black - Image 2](https://m.media-amazon.com/images/I/61Jyx6+0DkL.jpg) ![Gold Label Underwater Sealant, 290 ml, Black - Image 3](https://m.media-amazon.com/images/I/61B3-znnhFL.jpg) ![Gold Label Underwater Sealant, 290 ml, Black - Image 4](https://m.media-amazon.com/images/I/61eVtmhWPHL.jpg) ![Gold Label Underwater Sealant, 290 ml, Black - Image 5](https://m.media-amazon.com/images/I/61xxJNORrML.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 ### ⭐⭐⭐⭐⭐ 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. ### ⭐⭐⭐⭐⭐ Amazing product and works perfectly *by M***S on 5 May 2021* This product is amazing and I wish I discovered it sooner. My pond has always had a slow leak since I bought the property and it was already there and it was annoying, but I lived with it. However recently I was working by the side of the pond and dropped a saw which tore big jagged holes in the liner.... I was mortified and the level dropped by half within hours. After lots of research and not much luck and almost resided to the fact I was going to have a mammoth task ahead redoing the pond, I discovered this product. Skeptical but I tgought for the price, worth a shot. Amazing. Easy to apply, does exactly what it says on the tube and whilst I did it, I went around and covered a few tiny holes at top and pond is the fullest and best it's looked since I have moved in and staying full. For the large holes from the saw teeth, I bought a tiny pond liner from here, which was cheap and cut a small patch, like repairing a bike tyre and it's worked a treat. £20 spent in total and pond like new. ### ⭐⭐⭐⭐ 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 --- ## 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.tn/products/48209530-gold-label-underwater-sealant-290-ml-black](https://www.desertcart.tn/products/48209530-gold-label-underwater-sealant-290-ml-black) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-06-03*