--- product_id: 17949646 title: "Sikaflex-291, Black, Fast Cure Marine Adhesive and Sealant, Polyurethane for Boats, Waterproof, Paintable, 10.1 fl. oz Cartridge" brand: "sika" price: "€ 39.08" currency: EUR in_stock: true category: "Sika" url: https://www.desertcart.hr/products/17949646-sikaflex-291-black-fast-cure-marine-adhesive-and-sealant-polyurethane store_origin: HR region: Croatia --- # Marine-grade polyurethane Water & saltwater resistant Cures skin in ~60 mins Sikaflex-291, Black, Fast Cure Marine Adhesive and Sealant, Polyurethane for Boats, Waterproof, Paintable, 10.1 fl. oz Cartridge **Brand:** sika **Price:** € 39.08 **Availability:** ✅ In Stock ## Summary > ⚓ Seal your boat like a pro — fast, tough, and ready for the waves! ## Quick Answers - **What is this?** Sikaflex-291, Black, Fast Cure Marine Adhesive and Sealant, Polyurethane for Boats, Waterproof, Paintable, 10.1 fl. oz Cartridge by sika - **How much does it cost?** € 39.08 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/17949646-sikaflex-291-black-fast-cure-marine-adhesive-and-sealant-polyurethane) ## 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 - • **Paint-Ready Finish:** Sandable and paintable for a sleek, professional look every time - • **Effortless Application:** Compatible with manual, pneumatic, and electric guns for precision control - • **Unmatched Water Defense:** Resists fresh and saltwater damage to keep your vessel sealed tight - • **Fast-Track Marine Repairs:** Cures quickly on contact with moisture for rapid project turnaround - • **Vibration-Resistant Bonding:** Elastic joint seal absorbs shocks and vibrations for lasting durability ## Overview SIKA Sikaflex-291 is a black, one-component polyurethane marine adhesive and sealant designed for fast curing and superior water resistance. Ideal for boats, it forms strong, elastic, vibration-resistant seals on multiple surfaces including wood, metal, and plastics. This 10.1 fl. oz cartridge is compatible with various application guns and can be sanded and painted for a flawless finish, meeting international maritime standards. ## Description For secure seals in a marine environment that won't degrade due to water exposure, Sikaflex-291 adhesive and sealant offers an optimal solution. It's an all-purpose sealant that creates strong, stable bonds to a wide range of common marine construction surfaces, including wood, metal, ceramic materials, plastics, and metal primers and paint coatings. It's ideal for elastic and vibration-resistant joint seals or for a range of interior applications. Once applied, the sealant can be sanded and finished with paint for a truly professional sheen. Satisfies the International Maritime Organization standards and ISO 9001 / 14001. ## Features - THE CHOICE FOR BOATS — Formulated for use in marine construction, this one-component polyurethane adhesive creates a strong, elastic, and vibration-resistant joint seal - CURES QUICKLY FOR FAST JOBS — Begins to cure immediately upon exposure to atmospheric moisture and develops a skin within approximately 60 minutes, depending on environmental factors such as humidity - HIGH RESISTANCE TO WATER DAMAGE — Whether fresh or salt water, this Sikaflex marine sealant resists damage and maintains peak performance. It's also resistant for limited periods to fuels and oils - DURABLE AND NON-CORROSIVE — Sika-291 marine sealant and adhesive won't wear away due to exposure to the elements or to most diluted acids or caustic solutions. Enjoy long-lasting performance - QUICK AND EASY — Sikaflex-291 comes in a conveniently-sized cartridge that connects to manual, pneumatic, and electric-driven piston guns. Simply point it where you want it to go ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00C501KD4 | | Best Sellers Rank | #4,652 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #10 in Polyurethane Adhesives | | Brand Name | SIKA | | Color | Black | | Compatible Material | Aluminum | | Container Type | Cartridge | | Customer Reviews | 4.6 4.6 out of 5 stars (1,307) | | Full Cure Time | 24 Hours | | Global Trade Identification Number | 00033886005272 | | Included Components | Sealant | | Item Form | Paste | | Item Package Quantity | 1 | | Item Type Name | Adhesive | | Item Weight | 10.1 Ounces | | Manufacturer | Sika USA | | Material Type | 1-C polyurethane | | Model | 90923 | | Number of Pieces | 1 | | Other Special Features of the Product | Water Resistant | | Part Number | 017-90923 | | Specific Uses For Product | Marine | | UPC | 033886005272 | | Unit Count | 10.1 Fluid Ounces | | Viscosity Level | High | | Volume | 10.1 Fluid Ounces | | Water Resistance Level | Water Resistant | ## Product Details - **Brand:** SIKA - **Item Form:** Paste - **Material:** 1-C polyurethane - **Special Feature:** Water Resistant - **Specific Uses For Product:** Marine ## Images ![Sikaflex-291, Black, Fast Cure Marine Adhesive and Sealant, Polyurethane for Boats, Waterproof, Paintable, 10.1 fl. oz Cartridge - Image 1](https://m.media-amazon.com/images/I/71EkVlxGSIL.jpg) ![Sikaflex-291, Black, Fast Cure Marine Adhesive and Sealant, Polyurethane for Boats, Waterproof, Paintable, 10.1 fl. oz Cartridge - Image 2](https://m.media-amazon.com/images/I/8119qzS3FNL.jpg) ![Sikaflex-291, Black, Fast Cure Marine Adhesive and Sealant, Polyurethane for Boats, Waterproof, Paintable, 10.1 fl. oz Cartridge - Image 3](https://m.media-amazon.com/images/I/81yB3UQu86L.jpg) ![Sikaflex-291, Black, Fast Cure Marine Adhesive and Sealant, Polyurethane for Boats, Waterproof, Paintable, 10.1 fl. oz Cartridge - Image 4](https://m.media-amazon.com/images/I/71MXUK2nQNL.jpg) ![Sikaflex-291, Black, Fast Cure Marine Adhesive and Sealant, Polyurethane for Boats, Waterproof, Paintable, 10.1 fl. oz Cartridge - Image 5](https://m.media-amazon.com/images/I/81zrwecanhL.jpg) ## Available Options This product comes in different **Color, Size, Number of Items** options. ## Frequently Bought Together - Sikaflex-291, Black, General All-Purpose Fast Cure Marine Adhesive and sealant. Polyurethane sealant for Boats, 10.1 fl. oz Cartridge - Sika Sikaflex-291 LOT - General All-Purpose Adhesive and sealant, Black - Marine Use - Elastic and Non-Corrosive - 10.1 fl. oz. --- ## 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/17949646-sikaflex-291-black-fast-cure-marine-adhesive-and-sealant-polyurethane](https://www.desertcart.hr/products/17949646-sikaflex-291-black-fast-cure-marine-adhesive-and-sealant-polyurethane) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-16*