--- product_id: 265602460 title: "Sikaflex-291, White, General All-Purpose Fast Cure Marine Adhesive and sealant. Polyurethane sealant for Boats, 10.1 fl. oz Cartridge" brand: "sika" price: "S$46" currency: SGD in_stock: true reviews_count: 5 category: "Sika" url: https://www.desertcart.sg/products/265602460-sikaflex-291-white-general-all-purpose-fast-cure-marine-adhesive store_origin: SG region: Singapore --- # Marine-grade adhesion Water & chemical resistant Fast cure time Sikaflex-291, White, General All-Purpose Fast Cure Marine Adhesive and sealant. Polyurethane sealant for Boats, 10.1 fl. oz Cartridge **Brand:** sika **Price:** S$46 **Availability:** ✅ In Stock ## Summary > ⚓ Seal the deal fast, stay afloat longer! ## Quick Answers - **What is this?** Sikaflex-291, White, General All-Purpose Fast Cure Marine Adhesive and sealant. Polyurethane sealant for Boats, 10.1 fl. oz Cartridge by sika - **How much does it cost?** S$46 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/265602460-sikaflex-291-white-general-all-purpose-fast-cure-marine-adhesive) ## 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 - • **Rapid Seal Mastery:** Fast tack-free cure accelerates your project timeline without compromising strength. - • **All-Weather Warrior:** Resistant to fresh & sea water, acids, oils, and more—built to withstand harsh marine environments. - • **Marine-Grade Bonding:** Superior adhesion to gelcoat, fiberglass, metal, and wood ensures lasting durability on all boat surfaces. - • **Versatile Application:** Can be brushed or squeezed into place, perfect for above and below waterline sealing needs. - • **Certified Safe & Reliable:** NSF & USDA approved for incidental food contact and drinkable water systems—trusted by pros. ## Overview Sikaflex-291 is a professional-grade, fast-curing polyurethane marine adhesive and sealant designed for superior elasticity and vibration resistance. Ideal for boats and marine construction, it bonds strongly to multiple surfaces and withstands harsh water and chemical exposure, making it a trusted choice for durable, long-lasting seals above and below the waterline. ## Description Sikaflex®-291 is a high-quality, multipurpose sealant designed specifically for marine applications, making it ideal for use in boats and marine construction. This versatile product provides exceptional elasticity and vibration resistance, ensuring durable, long-lasting seals for joints and seams. Applications: Sikaflex®-291 is perfect for creating vibration-resistant, elastic seals in boats, yachts, and other marine vessels. It is also suitable for a variety of interior sealing applications, making it an essential product for boat maintenance and repair. Review: bon produit ,la personne est satisfaite - article conforme Review: Holds well, good gap filler. - Used this to fill the seam between the hull and deck. Used an electric calking gun allowing for controlled flow into the seams which were 22ft runs from stern to bow. took two tubes of Silkaflex. While fresh it was easy to use a scraper to push this material deeper into the seam and simple to remove excess leaving a smooth seam level with the deck. It took several days to harden to my satisfaction and in the meantime collected a layer of dust onto its surface. Once painted there is a subtle but clear discoloration showing through the paint. It's a good product but as this was a restoration job on a classic wooden boat I think epoxy would have been a better choice. But, no complaints with how this material works and I'm sure it will hold up for some time as the hull and deck flex a bit with movement and with the natural swelling and shrinking inherent in wood. ## Features - Adhesive and sealant used by many boat builders, its fast cure time makes it ideal for applications where speed is important. - SUPPORTS: Excellent adhesion to gelcoat, fiberglass, metal and wood. - DURABILITY: Resistant to fresh water, sea water, limewater, sewage effluent, diluted acids and caustic solutions, temporarily resistant to fuels, mineral oils, vegetable and animal fats and oils. - PERFORMANCE: It's used above and below water line. It may be squeezed or brushed into place. Excellent bond, fast tack-free time and can be painted. - NSF approved for drinkable water and USDA approved for incidental food contact. This product is suitable for experienced professional users only. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01GPIXX5Y | | Best Sellers Rank | #59,866 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #360 in Hardware Sealers | | Brand | SIKA | | Brand Name | SIKA | | Color | White | | Colour | White | | Compatible Material | Metal | | Container Type | Cartridge | | Customer Reviews | 4.4 out of 5 stars 1,182 Reviews | | Included Components | Sealant | | Item Form | Paste | | Item Package Quantity | 1 | | Item Type Name | Adhesive | | Item Weight | 300 Grams | | Item form | Paste | | Manufacturer | Sika USA | | Material | 1-C polyurethane | | Material Type | 1-C polyurethane | | Model | 90919 | | Number of Pieces | 1 | | Other Special Features of the Product | Fast Cure | | Part Number | 90919 | | Special features | Fast Cure | | Specific Uses For Product | Boating | | Specific uses for product | Boating | | Tensile Strength | 260 Kips Per Square Inch | | UPC | 033886005258 | | Unit Count | 298.69 Milliliters | | Viscosity Level | Medium | | Volume | 10.1 Fluid Ounces | | Water Resistance Level | Water Resistant | ## Product Details - **Brand:** SIKA - **Colour:** White - **Item form:** Paste - **Item package quantity:** 1 - **Material:** 1-C polyurethane ## Images ![Sikaflex-291, White, General All-Purpose Fast Cure Marine Adhesive and sealant. Polyurethane sealant for Boats, 10.1 fl. oz Cartridge - Image 1](https://m.media-amazon.com/images/I/71EkVlxGSIL.jpg) ## Available Options This product comes in different **Color, Size, Number Of Items** options. ## Questions & Answers **Q: Does the black caulk dry to a gloss, or is it more matte finish, like a dull rubber?** A: it still retains a dark matte color I would not say dull, but not a gloss finish **Q: Will it bond to bare aluminum to seal around the rivets?** A: Yes, I used it to seal my roof fans on my Sprinter. It adhered to painted metal (scored the paint), wood framing of the opening, plastic shroud and aluminum pressure plates. I am extremely satisfied with this product and from the day installed, it shows no wear even after a year. Excellent product... Another really good product is 3m 4200 Marine Adhesive... **Q: Will this bond to rubber?** A: Not sure about rubber, but everything else I happened to get it on and let dry it stuck like paint. My clothes, stainless railings, fiberglass cabin, teak of course, cork fishing rod handle, my leather wallet. . . **Q: can you use to adhere spoiler** A: probably work great ## Customer Reviews ### ⭐⭐⭐⭐⭐ bon produit ,la personne est satisfaite *by M***E on 13 September 2026* article conforme ### ⭐⭐⭐⭐⭐ Holds well, good gap filler. *by J***F on 21 July 2024* Used this to fill the seam between the hull and deck. Used an electric calking gun allowing for controlled flow into the seams which were 22ft runs from stern to bow. took two tubes of Silkaflex. While fresh it was easy to use a scraper to push this material deeper into the seam and simple to remove excess leaving a smooth seam level with the deck. It took several days to harden to my satisfaction and in the meantime collected a layer of dust onto its surface. Once painted there is a subtle but clear discoloration showing through the paint. It's a good product but as this was a restoration job on a classic wooden boat I think epoxy would have been a better choice. But, no complaints with how this material works and I'm sure it will hold up for some time as the hull and deck flex a bit with movement and with the natural swelling and shrinking inherent in wood. ### ⭐⭐⭐⭐⭐ Very good *by L***O on 5 August 2026* This is a very good product. It would probably stick to water. D ## Frequently Bought Together - Sikaflex-291, White, General All-Purpose Fast Cure Marine Adhesive and sealant. Polyurethane sealant for Boats, 10.1 fl. oz Cartridge - Sikaflex-291 LOT, White, Marine Adhesive and sealant, General All-Purpose PU Adhesive with Long Open time, 10.1 fl. oz - Sikaflex-295 UV Resistant Marine Adhesive Sealant, 10.1 fl. oz Cartridge, White --- ## 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.sg/products/265602460-sikaflex-291-white-general-all-purpose-fast-cure-marine-adhesive](https://www.desertcart.sg/products/265602460-sikaflex-291-white-general-all-purpose-fast-cure-marine-adhesive) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-10-10*