--- product_id: 735171515 title: "Sikaflex-291 Black Fast Cure Marine Adhesive Sealant Boat Polyurethane Waterproof Paintable 10.1 fl oz Cartridge" brand: "sika" price: "2999646₫" currency: VND in_stock: true reviews_count: 5 category: "Sika" url: https://www.desertcart.vn/products/735171515-sikaflex-291-black-fast-cure-marine-adhesive-sealant-boat-polyurethane store_origin: VN region: Vietnam --- # Marine-grade polyurethane Water & fuel resistant Cures skin in ~60 mins Sikaflex-291 Black Fast Cure Marine Adhesive Sealant Boat Polyurethane Waterproof Paintable 10.1 fl oz Cartridge **Brand:** sika **Price:** 2999646₫ **Availability:** ✅ In Stock ## Summary > ⚓ Seal your marine projects with confidence and speed! ## Quick Answers - **What is this?** Sikaflex-291 Black Fast Cure Marine Adhesive Sealant Boat Polyurethane Waterproof Paintable 10.1 fl oz Cartridge by sika - **How much does it cost?** 2999646₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/735171515-sikaflex-291-black-fast-cure-marine-adhesive-sealant-boat-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 - • **Pro-Level Finish:** Sandable and paintable after curing to achieve a sleek, professional look every time. - • **Built for the Waves:** Formulated specifically for marine environments, ensuring durable, vibration-resistant seals. - • **Versatile Application:** Compatible with wood, metal, ceramic, plastics, and paint coatings for multi-surface bonding. - • **Fast-Track Marine Seal:** Starts curing on contact with air moisture for rapid project turnaround. - • **Resilient Against Elements:** Highly resistant to freshwater, saltwater, fuel, and oil exposure for long-lasting performance. ## Overview Sikaflex-291 is a black, one-part polyurethane marine adhesive and sealant designed for fast curing and durable, vibration-resistant joints. Ideal for boats and marine construction, it resists water, fuel, and corrosion while bonding a variety of materials. Delivered in a convenient 10.1 fl oz cartridge, it meets international maritime standards and offers a sandable, paintable finish for professional results. ## Description Sikaflex-291 adhesive and sealant provide the best solution for safe seals in marine environments that won't degrade when exposed to water. A versatile sealant that creates a strong and stable bond of common marine buildings, such as wood, metal, ceramic materials, plastic, metal primer and paint coatings. Ideal for flexible and vibration resistant joint seals, and a variety of interior applications. Once applied, you can sand the sealant and finish it with paint to achieve a truly professional sheen. Meets International Maritime Standards and ISO 9001/14001 Review: I bought this Sika 291 to repair an aluminum canoe. This marine urethane is basically the same thing that SportsPal sells in their repair kit. I haven't used it yet but based on other reviews it will be fine for the repair I set out to accomplish Regarding other reviewers stating they received out of date or wrong colour product, I ordered black and got black and the use by date was 9 months into the future (July 2025) beyond my purchase date Nov/2024. Review: Each type of caulk has its own purpose and this is not structural quite obviously. I like the fact that It can be above or below the waterline but I would not ever use this below the waterline. As I suspected there are better ways; that said knowing that they don't have a problem with it being underwater makes me feel a lot better about it being above water on my deck. Acting as a sealant. ## Features - BOAT CHOICE - Formulated for marine construction, this one-part polyurethane adhesive creates a strong, resilient, vibration-resistant joint seal - QUICK CURE FOR QUICK WORKING - When exposed to air moisture, it starts to cure immediately and develops skin within about 60 minutes depending on environmental factors such as humidity - Highly Resistant to Water Damage - Whether in freshwater or saltwater, this Sikaflex marine sealant is resistant to damage and maintains peak performance. It is also resistant to fuel and oil for a limited period of time - DURABLE AND CORROSION RESISTANT - Sika-291 marine sealant and adhesive won't wear out when exposed to most dilute acids and caustic solutions. Enjoy long-lasting performance - QUICK AND EASY - The Sikaflex-291 comes in a convenient size cartridge that connects to manual, pneumatic and electronic piston guns. Just point it at the desired location ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00C501KD4 | | Amazon Bestseller | #176,610 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #17,934 in Adhesives & Sealants | | Brand Name | SIKA | | Color | Black | | Compatible Material | Aluminum | | Container Type | Cartridge | | Customer Reviews | 4.3 4.3 out of 5 stars (472) | | Full Cure Time | 24 Hours | | Global Trade Identification Number | 00033886005272 | | Included Components | Sealant | | Item Form | Gel | | Item Package Quantity | 1 | | Item Weight | 10.1 Ounces | | Manufacturer | Sika USA | | Material Type | Polyurethane | | Model | 90923 | | Other Special Features of the Product | Water Resistant | | Specific Uses For Product | Marine | | UPC | 033886005272 | | Unit Count | 10.1 Count | | Viscosity | High Viscosity Paste | | Volume | 10.1 Fluid Ounces | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** SIKA - **Item Form:** Gel - **Material:** Polyurethane - **Special Feature:** Water Resistant - **Specific Uses For Product:** Marine ## Images ![Sikaflex-291 Black Fast Cure Marine Adhesive Sealant Boat Polyurethane Waterproof Paintable 10.1 fl oz Cartridge - Image 1](https://m.media-amazon.com/images/I/71EkVlxGSIL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by B***R on November 25, 2024* I bought this Sika 291 to repair an aluminum canoe. This marine urethane is basically the same thing that SportsPal sells in their repair kit. I haven't used it yet but based on other reviews it will be fine for the repair I set out to accomplish Regarding other reviewers stating they received out of date or wrong colour product, I ordered black and got black and the use by date was 9 months into the future (July 2025) beyond my purchase date Nov/2024. ### ⭐⭐⭐⭐⭐ Review *by R***W on March 16, 2026* Each type of caulk has its own purpose and this is not structural quite obviously. I like the fact that It can be above or below the waterline but I would not ever use this below the waterline. As I suspected there are better ways; that said knowing that they don't have a problem with it being underwater makes me feel a lot better about it being above water on my deck. Acting as a sealant. ### ⭐⭐⭐⭐⭐ Review *by M***O on March 6, 2026* Works the way it should. ## 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.vn/products/735171515-sikaflex-291-black-fast-cure-marine-adhesive-sealant-boat-polyurethane](https://www.desertcart.vn/products/735171515-sikaflex-291-black-fast-cure-marine-adhesive-sealant-boat-polyurethane) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-06-03*