--- product_id: 19276946 title: "Sikaflex-221 Multi-Purpose Polyurethane Sealant/Adhesive, 10.1 fl oz, Black – Permanent Elastic Seal, Sandable & Paintable, Non-Corrosive, Bonds to Metal, Plastics & More" brand: "sika" price: "€ 38.42" currency: EUR in_stock: true reviews_count: 13 url: https://www.desertcart.be/products/19276946-sikaflex-221-multi-purpose-polyurethane-sealant-adhesive-10-1-fl store_origin: BE region: Belgium --- # Waterproof & seawater resistant – ultimate durability Full cure in 3 hours – fast, reliable bonding 10.1 fl oz cartridge – precise application Sikaflex-221 Multi-Purpose Polyurethane Sealant/Adhesive, 10.1 fl oz, Black – Permanent Elastic Seal, Sandable & Paintable, Non-Corrosive, Bonds to Metal, Plastics & More **Brand:** sika **Price:** € 38.42 **Availability:** ✅ In Stock ## Summary > 🔧 Seal it once, seal it right – the pro’s choice for lasting bonds! ## Quick Answers - **What is this?** Sikaflex-221 Multi-Purpose Polyurethane Sealant/Adhesive, 10.1 fl oz, Black – Permanent Elastic Seal, Sandable & Paintable, Non-Corrosive, Bonds to Metal, Plastics & More by sika - **How much does it cost?** € 38.42 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/19276946-sikaflex-221-multi-purpose-polyurethane-sealant-adhesive-10-1-fl) ## 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 - • **Built to Last:** Age-resistant formula stands strong against seawater, acids, and harsh elements. - • **Fast, Permanent Seal:** Cures quickly on exposure to moisture, delivering a durable, elastic finish you can trust. - • **Effortless Application:** Ready-to-use cartridge fits all standard guns for clean, accurate placement every time. - • **Versatile Bonding Power:** Bonds seamlessly to metal, plastics, ceramics & more for all your project needs. - • **Safe for Sensitive Environments:** NSF-approved for drinking water and food production – peace of mind guaranteed. ## Overview Sikaflex-221 is a professional-grade, multi-purpose polyurethane sealant and adhesive in a convenient 10.1 fl oz cartridge. It offers permanent elastic seals with fast curing (3 hours), bonds to a wide range of surfaces including metal, plastics, and ceramics, and is waterproof and resistant to aging and harsh chemicals. NSF-approved for use in drinking water and food environments, it combines safety, durability, and ease of application for industrial and home projects alike. ## Description When you need a professional-grade elastic seal or bond, there's one name you can trust: The Sika Sikaflex-221. This multi-purpose adhesive & sealant creates permanent bonds to a wide variety of substrates to give you maximum versatility and range. It's a low-odor, non-corrosive compound that's easy and convenient to work with. For optimal performance, surfaces should be clean and free of any debris, dirt, grease, oil or dust, then dried prior to application. Complete tooling and finishing before skin forms, typically within an hour of use. ## Features - VERSATILITY AND QUALITY IN ONE - Sometimes simply called Sika 221 black, this one-component urethane caulk bonds to a range of substrates, including metals, plastics, and metal primers and coatings - AGE RESISTANT - Formulated to resist the effects of aging to better perform at peak capacity no matter the conditions. Also resists elements such as seawater, diluted acids, and caustic solutions - READY TO USE - The Sikaflex black sealant comes in a handy cartridge that fits easily on an electric, pneumatic or manual application gun, making accurate placement of adhesive paste quick and easy - SAFE AND EFFECTIVE - Approved by the NSF for use in both drinking water systems and food production operations, so you can rest easy knowing there's no harmful level of chemicals - PERFECT FOR INTERNAL SEALS AND BONDING - Use it for permanent seals that you can rely on. The paste also bonds to ceramic materials and cures quickly upon exposure to atmospheric moisture ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B00NW5LWHA | | Best Sellers Rank | #1,266 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #3 in Polyurethane Adhesives | | Brand Name | SIKA | | Color | Black | | Customer Reviews | 4.6 4.6 out of 5 stars (3,127) 4.6 out of 5 stars | | Full Cure Time | 3 hours | | Included Components | Sealant | | Item Form | Paste | | Item Type Name | Sealant | | Item Weight | 10.1 ounces | | Liquid Volume | 10.1 fluid ounces | | Manufacturer | SIKA | | Material Type | Polyurethane | | Model | SIKA-90893 | | Number Of Items | 1 | | Number Of Packs | 1 | | Part Number | 90893 | | Surface Recommendation | Metal, Wood, Glass | | Unit Count | 10.1 Fluid Ounces | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** SIKA - **Color:** Black - **Full Cure Time:** 3 hours - **Item Weight:** 10.1 ounces - **Liquid Volume:** 10.1 fluid ounces ## Images ![Sikaflex-221 Multi-Purpose Polyurethane Sealant/Adhesive, 10.1 fl oz, Black – Permanent Elastic Seal, Sandable & Paintable, Non-Corrosive, Bonds to Metal, Plastics & More - Image 1](https://m.media-amazon.com/images/I/6177TD7R3eL.jpg) ## Available Options This product comes in different **Color, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect for automotive use *by on Reviewed in the United States October 6, 2025* I used Sikaflex to adhere a roof wing to the back windshield of my car, and I’m seriously impressed with how well it worked. The bond is incredibly strong and feels permanent once cured. I let it set for about 24 hours before driving, and even after months of highway speeds and temperature changes, the wing hasn’t budged at all.The application was pretty straightforward, it has a thick, tacky consistency that gives you enough working time to position everything correctly before it starts to set. I’d recommend taping or clamping the part in place while it cures, because it does take a while to fully harden. Once cured, it’s flexible enough to handle vibration and movement, which is great for automotive use.One thing to note: this stuff is messy. It’s sticky, and once it gets on your hands or paint, it’s not easy to remove. Wear gloves, mask off surrounding areas, and have some cleaner or mineral spirits ready.Overall, Sikaflex delivered exactly what I needed, a strong, weatherproof, and vibration resistant bond that’s holding my roof wing securely in place. It’s not the cheapest adhesive, but it’s worth it for the strength and reliability. ### ⭐⭐⭐⭐⭐ Just the product you need *by on Reviewed in the United States August 31, 2026* Used to re-adhere the back sliding window assembly on my2015 F150. If you have the truck you know the inevitable issue where they pop off. Simply cleaned off any old adhesive and applied this and taped into position. Has been holding great ever since! ### ⭐⭐⭐⭐⭐ For perfect product for reattaching plastic bumpers to the body *by on Reviewed in the United States September 15, 2026* If your bumper is falling off of your car, this is the right stuff to use. Get it hooked back in place. Put this adhesive on and you will not have to worry about it coming off again ## Frequently Bought Together - Sika Sikaflex-221 - Black - Multi-Purpose Polyurethane sealant/Adhesive - Creates Permanent Elastic Seal - Sandable/paintable - Non-Corrosive - 10.1 fl oz - Dicor 551LSB-1 HAPS-Free NON-Leveling Lap Sealant - 10.3 Oz, Black, Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application - Dicor BT-1834-1 Butyl Seal Tape - 1/8" x 3/4" x 30' Repair Tape for RV, Trailer, Motorhome, Window, and Vent Sealing --- ## 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.be/products/19276946-sikaflex-221-multi-purpose-polyurethane-sealant-adhesive-10-1-fl](https://www.desertcart.be/products/19276946-sikaflex-221-multi-purpose-polyurethane-sealant-adhesive-10-1-fl) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-11-06*