--- product_id: 40593329 title: "Sika 291243 Sikaflex 291 Marine Grade 1 Component Polyurethane Elastomeric Sealant, 10.3 oz Capacity, Black" brand: "sikaflex" price: "€ 3.74" currency: EUR in_stock: false url: https://www.desertcart.be/products/40593329-sika-291243-sikaflex-291-marine-grade-1-component-polyurethane-elastomeric store_origin: BE region: Belgium --- # One-component, easy application Waterproof marine-grade seal 10.3 oz precision cartridge Sika 291243 Sikaflex 291 Marine Grade 1 Component Polyurethane Elastomeric Sealant, 10.3 oz Capacity, Black **Brand:** sikaflex **Price:** € 3.74 **Availability:** ❌ Out of Stock ## Summary > 🌊 Seal like a pro, stay leak-free like a boss! ## Quick Answers - **What is this?** Sika 291243 Sikaflex 291 Marine Grade 1 Component Polyurethane Elastomeric Sealant, 10.3 oz Capacity, Black by sikaflex - **How much does it cost?** € 3.74 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/40593329-sika-291243-sikaflex-291-marine-grade-1-component-polyurethane-elastomeric) ## Best For - sikaflex enthusiasts ## Why This Product - Trusted sikaflex brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Sleek Black Finish:** Professional look that blends seamlessly with marine and industrial surfaces. - β€’ **Trusted Brand Quality:** Backed by SIKA’s industry-leading polyurethane technology. - β€’ **Marine-Grade Durability:** Engineered to withstand harsh marine environments for lasting protection. - β€’ **Versatile Sealing Power:** Perfect for deck hardware, equipment, walls, and gutters. - β€’ **Effortless One-Component Formula:** No mixing requiredβ€”apply directly for fast, reliable sealing. ## Overview Sikaflex 291 is a 10.3 oz black, one-component polyurethane elastomeric sealant designed for marine and industrial use. Its waterproof, medium modulus formula ensures durable, flexible sealing for deck hardware, equipment, walls, and gutters, delivering professional-grade performance with easy application. ## Description Sikaflex Part #90923Sikaflex&Reg; 291 Marine Adhesive / Sealant A one-component, low viscous, medium modulus, polyurethane-based sealing/adhesive compound. This all-purpose grade is used for general sealing applications such as deck hardware and equipment. Attributes: Size = 10.3 oz. cart. Color = BlackPackage Quantity = 1 ## Features - SIKA 90923, SIK90923 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000Y85O18 | | Best Sellers Rank | #1,394,702 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #368 in Polyurethane Adhesives #831 in Urethane Adhesives | | Brand Name | Sikaflex | | Color | Black | | Customer Reviews | 5.0 5.0 out of 5 stars (4) | | Item Form | Paste | | Item Weight | 14.56 ounces | | Liquid Volume | 10.3 fluid ounces | | Manufacturer | SIKA | | Material Type | Polyurethane | | Part Number | 90923 | | Surface Recommendation | Walls, Gutter | | UPC | 033886000185 | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** Sikaflex - **Color:** Black - **Item Form:** Paste - **Item Weight:** 14.56 ounces - **Liquid Volume:** 10.3 fluid ounces ## Images ![Sika 291243 Sikaflex 291 Marine Grade 1 Component Polyurethane Elastomeric Sealant, 10.3 oz Capacity, Black - Image 1](https://m.media-amazon.com/images/I/31ST269ZWZL.jpg) ![Sika 291243 Sikaflex 291 Marine Grade 1 Component Polyurethane Elastomeric Sealant, 10.3 oz Capacity, Black - Image 2](https://m.media-amazon.com/images/I/41njRSgR9tL.jpg) ![Sika 291243 Sikaflex 291 Marine Grade 1 Component Polyurethane Elastomeric Sealant, 10.3 oz Capacity, Black - Image 3](https://m.media-amazon.com/images/I/41Uz1V27tiL.jpg) ![Sika 291243 Sikaflex 291 Marine Grade 1 Component Polyurethane Elastomeric Sealant, 10.3 oz Capacity, Black - Image 4](https://m.media-amazon.com/images/I/313I1H0zppL.jpg) ![Sika 291243 Sikaflex 291 Marine Grade 1 Component Polyurethane Elastomeric Sealant, 10.3 oz Capacity, Black - Image 5](https://m.media-amazon.com/images/I/51N-kQK2mnL.jpg) ## Questions & Answers **Q: What is the shelf life on the tubes of Sikaflex (Date on tubes) Thanks, R> Ross** A: The shelf life from my expierance is very short. Depending on how old it is when you receive it. But on average an unopened tube will last about a month. But we do not keep ours in a controlled climate. I would think if it was kept indoors in a climate controlled inviroment it would last longer. How much longet, I do not have that answer. But as stated we get about one month. ## Frequently Bought Together - Sika 291243 Sikaflex 291 Marine Grade 1 Component Polyurethane Elastomeric Sealant, 10.3 oz Capacity, Black - Sikaflex-291, White, General All-Purpose Fast Cure Marine Adhesive and sealant. Polyurethane sealant for Boats, 10.1 fl. oz Cartridge - Newborn Octogun 930-GTD Drip-Free Caulking Gun - Gator Trigger Grip | Fits 1/10 Gallon Cartridge |10:1 Thrust Ratio | Smooth Hex Rod Cradle with Built-in Smoother Tool | Scraper & Plug Included --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.be/products/40593329-sika-291243-sikaflex-291-marine-grade-1-component-polyurethane-elastomeric](https://www.desertcart.be/products/40593329-sika-291243-sikaflex-291-marine-grade-1-component-polyurethane-elastomeric) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-10-14*