--- product_id: 384074369 title: "Sikaflex Crack Flex Sealant, Gray, High Performance, Textured Polyurethane Self-Leveling, Sealant For Sealing Horizontal Cracks, 10,1 Fl. Oz" brand: "sika" price: "€ 48.20" currency: EUR in_stock: true reviews_count: 5 category: "Sika" url: https://www.desertcart.de/products/384074369-sikaflex-crack-flex-sealant-gray-high-performance-textured-polyurethane-self store_origin: DE region: Germany --- # Textured polyurethane blends with concrete Waterproof & weather-resistant durability Self-leveling for perfect horizontal crack fill Sikaflex Crack Flex Sealant, Gray, High Performance, Textured Polyurethane Self-Leveling, Sealant For Sealing Horizontal Cracks, 10,1 Fl. Oz **Brand:** sika **Price:** € 48.20 **Availability:** ✅ In Stock ## Summary > 🔧 Seal the deal with Sikaflex — where cracks meet their flexible match! ## Quick Answers - **What is this?** Sikaflex Crack Flex Sealant, Gray, High Performance, Textured Polyurethane Self-Leveling, Sealant For Sealing Horizontal Cracks, 10,1 Fl. Oz by sika - **How much does it cost?** € 48.20 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/384074369-sikaflex-crack-flex-sealant-gray-high-performance-textured-polyurethane-self) ## Best For - sika enthusiasts ## Why This Product - Trusted sika brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Versatile Application:** Ideal for horizontal cracks up to 1 inch wide, compatible with standard caulk guns and multiple paint types. - • **All-Weather Protection:** Waterproof and resistant to aging, ensuring long-lasting performance in any climate. - • **Elastic Crack Movement:** Advanced polyurethane formula flexes with every shift, preventing future damage. - • **Trusted by Pros & DIYers:** Top-rated sealant with 4.6 stars and proven success in tough sealing challenges. - • **Seamless Concrete Integration:** Textured, self-leveling sealant that blends invisibly with driveways, sidewalks, and terraces. ## Overview Sikaflex Crack Flex Sealant is a premium, self-leveling polyurethane sealant designed for horizontal cracks up to 1 inch wide. Its elastic technology ensures flexibility with crack movement, while its textured, waterproof formula blends seamlessly with concrete surfaces. Durable against weathering and aging, it supports a wide range of cementitious slabs and can be painted over with various paint types, making it a professional-grade solution for lasting crack repair. ## Description Sikaflex Crack Flex Sealant is a single component, textured, self-leveling, premium grade polyurethane sealant for permanently sealing horizontal cracks. It can be used in cracks up to 1 in. wide and provides long term durability. Its elastic technology formulation allows the sealant to remain flexible and move with the crack. Review: Good product although a little expensive for the application Review: The gray water tank on my class A RV was smelling terrible. It was getting inside the living area and making everything smell terrible. I couldn’t find a leak anywhere. When I looked at all the connections and the tank, the only thing I could find was how this pipe went into the top of the tank, there was no rubber connection with clamps. That seemed very suspicious to me. It just appeared to be stuck into the top of the tank, and sealed in there with what appeared to be plumbers putty. I called the manufacturer and asked if this was how it was supposed to be. I would purchase a rubber connection if it was available. They said they are still doing it this way and if they have a problem to use a Sikaflex gray compound. I purchased a tube, and although the pipe comes out of the top of the tank I used the self leveling compound. I started applying it above the suspect area and let it flow down over the existing stuff and let it flow onto the top of the tank. It actually made a very nice looking cone shaped seal. By that evening, I could tell the smell was getting better. It’s been about two weeks and you can’t detect it in the RV anymore. I have aired out the basement in the RV and that seems fine now too. I would highly recommend this flexible sealant. It’s amazing how flexible it is and how well it sealed this connection. We suffered with the smell for years until I had checked every fitting and the tank. The only thing left was this connection, but it appeared fine. The crack filling abilities of this self leveling system must have flowed into the source of the problem! Best ten bucks I’ve spent in a long time! ## Features - Ready-to-use premium quality sealant with elastic technology allowing for crack movement - PERFORMANCE: Self-leveling, waterproof and textured to be blended with concrete surface. - SUPPORTS: Concrete and cementitious slabs, such as: driveways, garages, sidewalks, balconies, pavements, terraces, decks, walkways, steps. - DURABILITY: Resists aging and weathering. - USES: Use with standard caulk gun to seal horizontalcracks up to 1 in. (38.1 mm) wide. Can be painted with water-based, oil-based or rubber-based paints. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00NO70BKA | | Best Sellers Rank | #10,783 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #41 in Silicone Sealers | | Customer Reviews | 4.6 4.6 out of 5 stars (1,822) | | Date First Available | 18 March 2015 | | Department | Unisex-Adult | | Item model number | 427706 | | Manufacturer | Sika Corporation | | Material type | Polyurethane | | Part number | 427706 | | Product Dimensions | 29.21 x 5.08 x 29.21 cm; 285.76 g | ## Product Details - **Brand:** SIKA - **Item dimensions L x W x H:** 29.2 x 5.1 x 29.2 centimeters - **Item weight:** 286 g - **Material:** Polyurethane - **Style:** Crack Flex Sealant ## Images ![Sikaflex Crack Flex Sealant, Gray, High Performance, Textured Polyurethane Self-Leveling, Sealant For Sealing Horizontal Cracks, 10,1 Fl. Oz - Image 1](https://m.media-amazon.com/images/I/610nqP+1m9L.jpg) ## Questions & Answers **Q: After application, is this sandable? Also, if yes, is there an ideal period of “curing” before sanding?** A: Yes, you can sand once fully cured. It is recommended to wait 3 to 5 days prior to sanding. Thank you for choosing Sika! **Q: How long does it take to dry a one inch gas about one inch deep 10 '" long?** A: Two hours to dry. Twelve to twenty four hours to cure. **Q: Should I apply this before or after applying a (water based siloxane) concrete sealer?** A: Apply after the concrete sealer. **Q: How soon after application can it be driven on?** A: Hi Kelly. We recommend waiting 3 to 5 days for the sealant to fully cure before opening to vehicular traffic. Thank you for choosing Sika! ## Customer Reviews ### ⭐⭐⭐⭐ Review *by A***Y on 14 April 2025* Good product although a little expensive for the application ### ⭐⭐⭐⭐⭐ Review *by J***E on 1 September 2023* The gray water tank on my class A RV was smelling terrible. It was getting inside the living area and making everything smell terrible. I couldn’t find a leak anywhere. When I looked at all the connections and the tank, the only thing I could find was how this pipe went into the top of the tank, there was no rubber connection with clamps. That seemed very suspicious to me. It just appeared to be stuck into the top of the tank, and sealed in there with what appeared to be plumbers putty. I called the manufacturer and asked if this was how it was supposed to be. I would purchase a rubber connection if it was available. They said they are still doing it this way and if they have a problem to use a Sikaflex gray compound. I purchased a tube, and although the pipe comes out of the top of the tank I used the self leveling compound. I started applying it above the suspect area and let it flow down over the existing stuff and let it flow onto the top of the tank. It actually made a very nice looking cone shaped seal. By that evening, I could tell the smell was getting better. It’s been about two weeks and you can’t detect it in the RV anymore. I have aired out the basement in the RV and that seems fine now too. I would highly recommend this flexible sealant. It’s amazing how flexible it is and how well it sealed this connection. We suffered with the smell for years until I had checked every fitting and the tank. The only thing left was this connection, but it appeared fine. The crack filling abilities of this self leveling system must have flowed into the source of the problem! Best ten bucks I’ve spent in a long time! ### ⭐⭐⭐⭐⭐ Review *by J***N on 11 September 2024* solo que no hay manera de ver la caducidad del producto, lo mandan muy limitado ## Frequently Bought Together - Sikaflex Crack Flex Sealant, Gray, High performance, textured polyurethane sealant, self-leveling, sealant for sealing horizontal cracks, 10,1 fl. Oz - M-D Building Products - Versatile Gray Foam Backer Rod Set 1/2in x 20ft - Essential Caulk Saver for Sealing Concrete Gaps, Expansion Joints, and Crack Filling (71480) - M-D Building Products - Versatile Gray Foam Backer Rod - Essential Caulk Saver for Sealing Concrete Gaps, Expansion Joints, and Crack Filling, 3/8 by 20 Feet, (Pack of 2) (71464) --- ## 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.de/products/384074369-sikaflex-crack-flex-sealant-gray-high-performance-textured-polyurethane-self](https://www.desertcart.de/products/384074369-sikaflex-crack-flex-sealant-gray-high-performance-textured-polyurethane-self) --- *Product available on Desertcart Germany* *Store origin: DE* *Last updated: 2026-04-23*