--- product_id: 216094877 title: "Polar Felt Seal Waterproof Roof Sealant, 500ml, Grey" brand: "polar specialist coatings" price: "R1282" currency: ZAR in_stock: true reviews_count: 8 url: https://www.desertcart.co.za/products/216094877-polar-felt-seal-waterproof-roof-sealant-500ml-grey store_origin: ZA region: South Africa --- # Instant waterproof barrier All-weather durability One-coat quick repair Polar Felt Seal Waterproof Roof Sealant, 500ml, Grey **Brand:** polar specialist coatings **Price:** R1282 **Availability:** ✅ In Stock ## Summary > 💪 Seal it once, forget the leaks forever! ## Quick Answers - **What is this?** Polar Felt Seal Waterproof Roof Sealant, 500ml, Grey by polar specialist coatings - **How much does it cost?** R1282 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/216094877-polar-felt-seal-waterproof-roof-sealant-500ml-grey) ## Best For - polar specialist coatings enthusiasts ## Why This Product - Trusted polar specialist coatings brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Seal leaks instantly 💧:** Forms a tough, waterproof membrane on felt and multiple surfaces for reliable protection. - • **Multi-surface versatility 🔄:** Perfect for felt, asphalt, metal, brick, concrete, gutters, and more—your all-in-one sealant solution. - • **Effortless one-coat fix 🛠️:** Covers up to 0.5m² per 500ml with no primer needed—get repairs done fast and efficiently. - • **Trusted heritage & support 📚:** Backed by 130+ years of paint expertise and clear guidance to boost your confidence on every project. - • **Weatherproof performance 🌦️:** Engineered to withstand rain, frost, and sun, ensuring long-lasting roof protection year-round. ## Overview Polar Felt Seal Waterproof Roof Sealant is a high-performance, polymer-based liquid sealant designed for quick, one-coat repairs on felt roofs and various other surfaces. Offering instant waterproof protection and durable weather resistance, it covers up to 0.5m² per 500ml and requires no primer, making it the go-to solution for shed, garage, and caravan roof maintenance. ## Description At Polar we are proud of our heritage, with over 130 years experience in paint manufacturing. Our product range is designed to provide you with excellent quality. Whether you are looking to renovate, revive or protect, our product range and customer-first approach makes Polar the perfect choice. Founded in 2018, Polar was created to give customers better education, choice and confidence through decorative and problem-solving paints that are easy to use and built to last As the former creators of Johnstone’s paints, we bring over 130 years of technical expertise. We’re committed to helping you succeed with high-quality, dependable products. With a customer-centric mindset, we support you at every stage - offering clear packaging, product guidance and how-to videos to give you the confidence to get the job done ## Features - Waterproof Seal: This felt sealant is your solution for leaks or cracks. It forms an immediate waterproof barrier. Suitable for shed roofs and garage roofs, creating a durable membrane that keeps out damp and water - Instant Protection: Formulated for tough, hard-wearing protection, this felt roof sealant is suitable for urgent repairs. It provides lasting protection for cracked surfaces and performs well in all weather conditions - Multi-Surface Compatibility: Solution for waterproofing felt roofs on sheds, garages, or caravans. Formulated for performance on flat or pitched roofs. The sealant can also be used on drainpipes, gutters, asphalt, metal, brick, and concrete for strong protection - One-Coat Repair: Polar FeltSeal delivers a fix with just one coat, getting your felt roof patch repair done with minimal effort. 500ml covers up to 0.5m², 1 Litre up to 1m², and 2.5 Litres up to 2.5m², ensuring coverage exactly where it is needed - Easy Application: No primer is needed before applying Polar FeltSeal. Simply apply directly for waterproof protection. Use a brush or roller for application. It will be touch dry within 3-4 hours. Clean the area of moss and debris beforehand ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B07YWYXB2Y | | Best Sellers Rank | 3,637 in DIY & Tools (See Top 100 in DIY & Tools) 102 in Sealers | | Brand | Polar Specialist Coatings | | Colour | Grey | | Compatible Material | Felt, Asphalt, Bitumen, Concrete, Brick, GRP, Fiberglass, Metal | | Country Of Origin | China | | Customer Reviews | 4.4 4.4 out of 5 stars (1,951) 4.4 out of 5 stars | | Included Components | Spray | | Item Dimensions | 11 x 10 x 11 centimetres | | Item Form | Liquid | | Item Highlight | One-Coat Liquid Rubber Waterproof Sealant, Shed and Garage Felt Roofs, Leak and Crack Repair, No Primer Needed | | Item Weight | 600 Grams | | Manufacturer | Polar Specialist Coatings | | Manufacturer Part Number | 3111111 | | Material | Polymer | | Model Number | 3111111 | | Number Of Items | 1 | | Number Of Packs | 1 | | Style Name | Feltseal | | Surface Recommendation | Concrete, Brickwork, GRP and Fibreglass, Felt and Metal (Galvanised and Ferrous) | | Unit Count | 500.0 millilitre | | Water Resistance Level | Waterproof | ## Images ![Polar Felt Seal Waterproof Roof Sealant, 500ml, Grey - Image 1](https://m.media-amazon.com/images/I/71q2oH4FyTL.jpg) ![Polar Felt Seal Waterproof Roof Sealant, 500ml, Grey - Image 2](https://m.media-amazon.com/images/I/814b0foBYwL.jpg) ![Polar Felt Seal Waterproof Roof Sealant, 500ml, Grey - Image 3](https://m.media-amazon.com/images/I/81uN41S9+qL.jpg) ![Polar Felt Seal Waterproof Roof Sealant, 500ml, Grey - Image 4](https://m.media-amazon.com/images/I/91srBPkgjML.jpg) ![Polar Felt Seal Waterproof Roof Sealant, 500ml, Grey - Image 5](https://m.media-amazon.com/images/I/81ZOGJNRk+L.jpg) ## Available Options This product comes in different **Color, Size** options. ## Questions & Answers **Q: If I paint this over the nails in the felt will it seal it and stop it raining it** A: Yes it will work. Put plenty on to plug the gaps/holes **Q: Does it change the texture?** A: No. This paint has a subtle lightly textured finish coat not unlike asphalt roofing felt. It’s darker but the texture is effectively the same. **Q: Can you paint it on polycarbonate sheets** A: I don’t see any reason not to use as long as the polycarbonate sheets are stable. **Q: Is it possible to be used as water proofing for floor of bathrooms before tiles** A: i do not see why not i used on a garage roof in 2021 and it is sill o.k !!! ## Customer Reviews ### ⭐⭐⭐⭐⭐ Quick and easy felt sealer *by on Reviewed in the United Kingdom 5 January 2025* I had developed a leak along the join in my shed roof where the clout nails hold the edge at the overlap. Rather than redoing the whole roof again as it had only been done six months prior I decided to try a sealer. It has been applied now for about six months and we have had some pretty horrendous wind and rain during this time but there is absolutely no sign of any leakage in the area of the joint anymore. Simple to apply with just a brush straight into the felt and job done. Definitely does what it says on the tin. First class product imo. ### ⭐⭐⭐⭐ very good *by on Reviewed in the United Kingdom 5 September 2026* easy to use, colour blends in well with roof of summer house, seems to work well so far ### ⭐⭐⭐⭐⭐ it is much cheaper than having a new roof *by on Reviewed in the United Kingdom 10 July 2026* We have used polar felt seal before. It is very easy to use and does the job --- ## 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.co.za/products/216094877-polar-felt-seal-waterproof-roof-sealant-500ml-grey](https://www.desertcart.co.za/products/216094877-polar-felt-seal-waterproof-roof-sealant-500ml-grey) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-10-04*