--- product_id: 26693033 title: "SIKA Sikaflex-291 LOT Marine Adhesive and Sealant, Black, 10.1 fl oz" brand: "sika" price: "$32.33" currency: USD in_stock: true reviews_count: 13 category: "Sika" url: https://www.desertcart.us/products/26693033-sika-sikaflex-291-lot-marine-adhesive-and-sealant-black-10 store_origin: US region: United States of America --- # 24-hour full cure time Marine-grade water resistance One-component easy application SIKA Sikaflex-291 LOT Marine Adhesive and Sealant, Black, 10.1 fl oz **Brand:** sika **Price:** $32.33 **Availability:** ✅ In Stock ## Summary > 🌟 Seal the deal with marine-grade strength and style! ## Quick Answers - **What is this?** SIKA Sikaflex-291 LOT Marine Adhesive and Sealant, Black, 10.1 fl oz by sika - **How much does it cost?** $32.33 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/26693033-sika-sikaflex-291-lot-marine-adhesive-and-sealant-black-10) ## 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 - • **Effortless Application:** Compatible with manual, pneumatic, or electric piston guns for smooth, precise sealing - • **Ultimate Marine Bonding:** Adheres flawlessly to wood, fiberglass, and metal for unbeatable marine durability - • **Weatherproof & Resilient:** Resists fresh and seawater, acids, fuels, and oils—built to last in harsh environments - • **Paintable & Sandable Finish:** Cures to a stable, black sealant that can be overpainted and sanded for a professional look - • **Vibration-Resistant Elasticity:** Highly elastic formula absorbs vibrations, perfect for decking and dynamic marine joints ## Overview SIKA Sikaflex-291 LOT is a premium one-component polyurethane marine adhesive and sealant designed for superior bonding on wood, fiberglass, and metal. It offers exceptional resistance to fresh and seawater, acids, and oils, curing fully in 24 hours to a durable, paintable black finish. Ideal for above and below waterline applications, it delivers vibration-resistant elasticity and easy application with various piston guns, making it the go-to sealant for professional marine construction and repair. ## Description If you need a marine-grade sealant that creates a strong, secure bond with a wide array of surfaces commonly found in marine applications, Sikaflex-291 LOT's black sealant is the ideal choice. It's specially designed for use where a long working time is needed, and cooler temperatures can extend the curing period. The typical skinning period is four hours, after which it can be painted for a more professional finish. Sikaflex-291 LOT is a self-leveling marine grade sealant, so you won't need to tool it down for an even surface. 10.1 fl. oz. cartridges fit conveniently on a variety of piston guns. Review: This is worth every penny - Best stuff for outdoor applications Review: Excelente artículo, lo volvería a comprar - Muy bueno, aunque debe saber que demora unas 48 horas para que seque bien y más si es muy grande el grosor que aplicó pero calidad extrema ## Features - IDEAL FOR MARINE APPLICATIONS — Sika 291 adheres to material commonly used in marine construction, such as wood, fiberglass, metal, and metal primers and paint coatings. Use above or below water line - VERSATILE AND DURABLE — It is non-corrosive and highly elastic making vibration-resistant joint seals on decking and can be used in an array of interior contexts - FORMULATED FOR PERFORMANCE — This one-component polyurethane marine-grade sealant cures upon exposure to atmospheric moisture. The black sealant can be overpainted and sanded without loss of stability - RESISTANT TO BOTH FRESH AND SEAWATER — Will also resist diluted acids and caustic solutions. Provides temporary resistance to fuels, mineral oils, and vegetable and animal fats - EASY APPLICATION — Use a manual, pneumatic, or electric-driven piston gun to apply this one-component polyurethane paste. Surface should be clean and dry prior to application for optimal performance ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00C50GIQI | | Best Sellers Rank | #24,140 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #13 in Polyurethane Adhesives #50 in Urethane Adhesives | | Brand Name | SIKA | | Color | Black | | Compatible Material | Fiberglass, Metal, Wood | | Container Type | Cartridge | | Customer Reviews | 4.6 4.6 out of 5 stars (365) | | Full Cure Time | 24 hours | | 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 | 90927 | | Number of Pieces | 1 | | Other Special Features of the Product | Water Resistant | | Part Number | 90927 | | Specific Uses For Product | Marine, Underwater | | UPC | 033886005289 | | Unit Count | 10.1 Fluid Ounces | | Viscosity Level | Medium to High | | Volume | 10.1 fluid ounces | | Warranty Description | Warranty | | 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, Underwater ## Images ![SIKA Sikaflex-291 LOT Marine Adhesive and Sealant, Black, 10.1 fl oz - Image 1](https://m.media-amazon.com/images/I/31B6dEqz5lL.jpg) ![SIKA Sikaflex-291 LOT Marine Adhesive and Sealant, Black, 10.1 fl oz - Image 2](https://m.media-amazon.com/images/I/51Tq4EFvpvL.jpg) ![SIKA Sikaflex-291 LOT Marine Adhesive and Sealant, Black, 10.1 fl oz - Image 3](https://m.media-amazon.com/images/I/51xkMma9DqL.jpg) ![SIKA Sikaflex-291 LOT Marine Adhesive and Sealant, Black, 10.1 fl oz - Image 4](https://m.media-amazon.com/images/I/51csqbYORYL.jpg) ![SIKA Sikaflex-291 LOT Marine Adhesive and Sealant, Black, 10.1 fl oz - Image 5](https://m.media-amazon.com/images/I/518-bhVLY9L.jpg) ## Available Options This product comes in different **Color, Size, Number Of Items** options. ## Questions & Answers **Q: Will this work to repair cracks in my pool skimmer? Is it elastic or hard like epoxy when cured?** A: It is elastomeric and should work well for that I would think. I used it to seal the roof seams on a 2015 GMC pickup and it worked great. Keep in mind it is self leveling so it spreads out a bit on its own. **Q: Would this work for adhering rubber matting to a wooden and aluminum boat deck?** A: yes, it would work. A permanent solution would be 3M 5200 sealant. Try a small piece first! **Q: can i use this to attach solar panels to camper roof? pnls weigh 24pnds.** A: I used mine for water proofing sealant while glueing down a metal flang which weighed very little. Not sure about the solar panels **Q: Would this work in a swimming pool. I have a concrete pool that has plexiglass windows in the sides below the water level.** A: I believe so, we use it on the seams of our water slide that's underwater at all times. ## Customer Reviews ### ⭐⭐⭐⭐⭐ This is worth every penny *by G***T on August 28, 2026* Best stuff for outdoor applications ### ⭐⭐⭐⭐⭐ Excelente artículo, lo volvería a comprar *by O***O on July 29, 2026* Muy bueno, aunque debe saber que demora unas 48 horas para que seque bien y más si es muy grande el grosor que aplicó pero calidad extrema ### ⭐⭐⭐⭐⭐ White Caulk for the win *by J***T on June 15, 2026* Best caulk I’ve ever had the pleasure to work with. Filled the cracks like none other. You know, I was debating the Black Caulk, because I thought it might be more filling, but the white Marine Caulk, was enough to get the job done. ## Frequently Bought Together - Sika Sikaflex-291 LOT - General All-Purpose Adhesive and sealant, Black - Marine Use - Elastic and Non-Corrosive - 10.1 fl. oz. - Sikaflex-291, Black, General All-Purpose Fast Cure Marine Adhesive and sealant. Polyurethane sealant for Boats, 10.1 fl. oz Cartridge --- ## 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.us/products/26693033-sika-sikaflex-291-lot-marine-adhesive-and-sealant-black-10](https://www.desertcart.us/products/26693033-sika-sikaflex-291-lot-marine-adhesive-and-sealant-black-10) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-09-21*