--- product_id: 128252400 title: "– Polar Felt Seal Waterproof Roof Sealant, 500ml, Black" brand: "polar specialist coatings" price: "€ 35.91" currency: EUR in_stock: true reviews_count: 8 category: "Polar Specialist Coatings" url: https://www.desertcart.hr/products/128252400-polar-felt-seal-waterproof-roof-sealant-500ml-black store_origin: HR region: Croatia --- # Instant Waterproofing One Coat Application Durable Protection – Polar Felt Seal Waterproof Roof Sealant, 500ml, Black **Brand:** polar specialist coatings **Price:** € 35.91 **Availability:** ✅ In Stock ## Summary > 🏠 Seal the leaks, save the day! ## Quick Answers - **What is this?** – Polar Felt Seal Waterproof Roof Sealant, 500ml, Black by polar specialist coatings - **How much does it cost?** € 35.91 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/128252400-polar-felt-seal-waterproof-roof-sealant-500ml-black) ## 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 the Deal:** Achieve instant waterproofing with just one coat! - • **Emergency Ready:** Perfect for quick fixes on flat or pitched roofs. - • **Surface Specific:** Optimized for felt roofs, but versatile for other surfaces. - • **No Fuss Application:** No primer needed—just brush or roll on! - • **Long-Lasting Defense:** Reinforced fibers ensure tough, durable protection. ## Overview Polar Premium Black Felt Seal is a 500ml instant waterproof roof sealant designed for quick and effective repairs on flat or pitched felt roofs. Its unique formulation allows for easy application without the need for a primer, providing durable protection against leaks and cracks. Ideal for emergency situations, this sealant covers up to 0.5㎡ and dries touch dry within 3-4 hours, ensuring your roofs stay protected from the elements. ## Description Free delivery and returns on all eligible orders. Shop Polar Felt Seal Waterproof Roof Sealant, 500ml, Black | One-Coat Liquid Rubber Waterproof Sealant, Shed and Garage Felt Roofs, Leak and Crack Repair, No Primer Needed. Review: Quick and easy felt sealer - 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. Review: Good product -- but not the one I ordered! - I ordered FeltSeal black, but you sent LeakSeal clear. As it happens, that was also fine for what I needed, so it wasn't an issue for me. The clear version seems to be working fine -- I'm using it to repair some damage to a felt roof -- two small holes (around 3 cm) which were made by flying debris during a recent storm. The stuff went on easily, I used two applications to be sure, and ran the first one under the felt to help seal it. My only comment was that it seemed to remain unset for a long time -- it was still malleable two days later. Hopefully it will eventually set, and as long as it keeps sealing I'm OK with that! ## Features - Flammable liquid and vapour. - May cause drowsiness or dizziness. - May cause respiratory irritation. - Toxic to aquatic life with long lasting effects. - 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 | B07PWXV93R | | Best Sellers Rank | 2,554 in DIY & Tools ( See Top 100 in DIY & Tools ) 86 in Sealers | | Brand | Polar Specialist Coatings | | Colour | Black | | Compatible Material | Aluminium, Metal | | Customer Reviews | 4.4 out of 5 stars 1,946 Reviews | | 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 | | Item dimensions L x W x H | 11 x 10 x 11 centimetres | | Item weight | 600 Grams | | Manufacturer | Polar Specialist Coatings | | Manufacturer Part Number | 4000057-FBA | | Material | Solvent-Based Acrylic | | Model Number | 4000057-FBA | | Number of Items | 1 | | Number of Packs | 1 | | Style | Feltseal | | 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 | | Water resistance level | Waterproof | ## Product Details - **Brand:** Polar Specialist Coatings - **Colour:** Black - **Finish type:** Flatt / Matte - **Size:** 500 ml (Pack of 1) - **Item volume:** 500 Millilitres - **Special feature:** Long lasting - **Unit count:** 500.0 millilitre - **Paint type:** Oil - **Specific uses for product:** Exterior - **Surface recommendation:** Roof ## Images ![– Polar Felt Seal Waterproof Roof Sealant, 500ml, Black - Image 1](https://m.media-amazon.com/images/I/715qJckHPPL.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 K***Y on 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. ### ⭐⭐⭐⭐ Good product -- but not the one I ordered! *by M***N on 8 January 2021* I ordered FeltSeal black, but you sent LeakSeal clear. As it happens, that was also fine for what I needed, so it wasn't an issue for me. The clear version seems to be working fine -- I'm using it to repair some damage to a felt roof -- two small holes (around 3 cm) which were made by flying debris during a recent storm. The stuff went on easily, I used two applications to be sure, and ran the first one under the felt to help seal it. My only comment was that it seemed to remain unset for a long time -- it was still malleable two days later. Hopefully it will eventually set, and as long as it keeps sealing I'm OK with that! ### ⭐⭐⭐⭐⭐ it is much cheaper than having a new roof *by J***. on 10 July 2026* We have used polar felt seal before. It is very easy to use and does the job ## Frequently Bought Together - Polar Premium Black Felt Seal - 500ml - Instant Waterproof Roof Sealant - Ideal for Flat or Pitched Felt, Shed & Garage Roofs - Easy to Apply - Polar Premium Black Tapeseal - 4'' x 5ft - Instant Waterproof Seal - Interior & Exterior - Ideal for Doors, Windows, Roofs, Gutters & Pipes - Adhesive & Flexible Leak Repair Tape - Standard Grade Shed Roofing Felt Black Mineral 16.4 x 3.2ft (5m x 1m) with 13mm Galvanized Roofing Nails Pack of 50 Included | Heavy Duty Premium Roof Felt --- ## 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.hr/products/128252400-polar-felt-seal-waterproof-roof-sealant-500ml-black](https://www.desertcart.hr/products/128252400-polar-felt-seal-waterproof-roof-sealant-500ml-black) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-09-09*