--- product_id: 62702681 title: "Sikaflex 291 Lot Black 10.3 oz. Cartridge Marine Adhesive/Sealant" brand: "sika" price: "$54.75" currency: USD in_stock: true reviews_count: 5 category: "Sika" url: https://www.desertcart.us/products/62702681-sikaflex-291-lot-black-10-3-oz-cartridge-marine-adhesive store_origin: US region: United States of America --- # Marine-Grade Adhesion Water Resistant Seal High Viscosity Gel Sikaflex 291 Lot Black 10.3 oz. Cartridge Marine Adhesive/Sealant **Brand:** sika **Price:** $54.75 **Availability:** ✅ In Stock ## Summary > ⚓ Seal the deal with marine-grade strength and water resistance! ## Quick Answers - **What is this?** Sikaflex 291 Lot Black 10.3 oz. Cartridge Marine Adhesive/Sealant by sika - **How much does it cost?** $54.75 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/62702681-sikaflex-291-lot-black-10-3-oz-cartridge-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 - • **Trusted by Pros:** Backed by a 4.6-star rating from 150+ users who rely on its performance and durability. - • **Long-Lasting Cure:** Fully cures in 72 hours, delivering a hard, resilient coating that stands the test of time. - • **Gel Power Adhesion:** High viscosity gel formula ensures strong, durable bonding on metal, plastic, and wood. - • **Marine-Grade Toughness:** Specifically engineered for harsh marine environments—resists wear and weather. - • **Ultimate Water Defense:** Seals and protects with superior water resistance for marine and wall applications. ## Overview Sikaflex 291 LOT Black is a high-viscosity silicone marine adhesive and sealant in a convenient 10.3 oz cartridge. Designed for metal, plastic, and wood, it offers superior water resistance and strong adhesion, curing fully in 72 hours. Ideal for demanding marine and wall sealing tasks, it combines professional-grade durability with user-trusted performance. ## Description Sikaflex 291 LOT Black 10.3 oz. Cartridge Marine Adhesive / Sealant Review: Works well - Works well, strong adhesion & hard cured coating Review: Good product - Good product. ## Features - May cause an allergic skin reaction. - May cause cancer by inhalation - May cause damage to organs through prolonged or repeated exposure. - Water Resistant ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00C50GIQI | | Best Sellers Rank | 1,204,163 in DIY & Tools ( See Top 100 in DIY & Tools ) 920 in Caulk | | Brand | Sika | | Colour | Black | | Compatible Material | Metal, Plastic, Wood | | Container Type | Cartridge | | Customer Reviews | 4.6 out of 5 stars 152 Reviews | | Full Cure Time | 72 Hours | | Item Form | Gel | | Item Package Quantity | 1 | | Item Volume | 10.1 Fluid Ounces | | Item Weight | 10.1 Ounces | | Item form | Gel | | Manufacturer | Sika | | Manufacturer Part Number | 90927 | | Material | Silicone | | Model Number | 90927 | | Number of Pieces | 1 | | Other Special Features of the Product | Water Resistant | | Special feature | Water Resistant | | Specific Uses For Product | Marine, Wall | | Specific uses for product | Marine, Wall | | UPC | 033886005289 | | Unit Count | 300 Millilitre | | Viscosity Level | High | | Water Resistance Level | Water Resistant | ## Product Details - **Brand:** Sika - **Item form:** Gel - **Material:** Silicone - **Special feature:** Water Resistant - **Specific uses for product:** Marine, Wall ## Images ![Sikaflex 291 Lot Black 10.3 oz. Cartridge Marine Adhesive/Sealant - Image 1](https://m.media-amazon.com/images/I/51GrKuGzegL.jpg) ## 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 ### ⭐⭐⭐⭐⭐ Works well *by S***V on 18 May 2026* Works well, strong adhesion & hard cured coating ### ⭐⭐⭐⭐⭐ Good product *by S***Y on 1 January 2026* Good product. ### ⭐⭐⭐⭐⭐ This is worth every penny *by G***T on 28 August 2026* Best stuff for outdoor applications ## 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/62702681-sikaflex-291-lot-black-10-3-oz-cartridge-marine-adhesive](https://www.desertcart.us/products/62702681-sikaflex-291-lot-black-10-3-oz-cartridge-marine-adhesive) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-10-18*