--- product_id: 294002535 title: "Sikaflex-221 Multi-Purpose Polyurethane SealantAdhesive, 10.1 fl oz, Black Permanent Elastic Seal, Sandable Paintable, Non-Corrosive, Bonds to Metal, Plastics More." brand: "sika" price: "€ 72.04" currency: EUR in_stock: true reviews_count: 5 category: "Sika" url: https://www.desertcart.sk/products/294002535-sikaflex-221-multi-purpose-polyurethane-sealantadhesive-10-1-fl-oz store_origin: SK region: Slovakia --- # Age-resistant formula for long-lasting durability Waterproof & NSF-approved for safe use One-component urethane for versatile bonding Sikaflex-221 Multi-Purpose Polyurethane SealantAdhesive, 10.1 fl oz, Black Permanent Elastic Seal, Sandable Paintable, Non-Corrosive, Bonds to Metal, Plastics More. **Brand:** sika **Price:** € 72.04 **Availability:** ✅ In Stock ## Summary > 🖤 Seal it once, seal it right — the black magic your projects deserve! ## Quick Answers - **What is this?** Sikaflex-221 Multi-Purpose Polyurethane SealantAdhesive, 10.1 fl oz, Black Permanent Elastic Seal, Sandable Paintable, Non-Corrosive, Bonds to Metal, Plastics More. by sika - **How much does it cost?** € 72.04 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/294002535-sikaflex-221-multi-purpose-polyurethane-sealantadhesive-10-1-fl-oz) ## 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:** Formulated to resist aging, seawater, acids, and caustic solutions—performance that endures. - • **Fast, Permanent Seal:** Cures quickly on exposure to moisture, delivering a durable, elastic, paintable finish. - • **Effortless Application:** Cartridge design fits all standard guns for precise, mess-free sealing every time. - • **Universal Bonding Power:** Bonds seamlessly to metals, plastics, ceramics, and primers for unmatched versatility. - • **Safe for Critical Environments:** NSF-approved for drinking water and food production—trust without compromise. ## Overview Sikaflex-221 is a premium black polyurethane sealant adhesive offering versatile, permanent bonding across metals, plastics, and ceramics. Its age-resistant, waterproof formula withstands harsh elements including seawater and acids, while NSF approval ensures safety for drinking water and food environments. Ready-to-use in a convenient cartridge, it delivers fast curing, sandable, and paintable seals ideal for professional-grade internal and external applications. ## Description 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. Review: sikaflex is the BOMB - Great brand always works Review: quality product - glad I found it - used this for a repair that needed waterproof and permanent - this applied on easy and so far 100% resolved issue! I used AI to recommend product off desertcart after uploading to AI a photo of the damage and this is what it recommended. ## 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 theres 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 | #58,411 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #50 in Adhesive Caulk | | Brand | SIKA | | Brand Name | SIKA | | Colour | Black | | Country of Publication | USA | | Customer Reviews | 4.5 out of 5 stars 1,454 Reviews | | Item Form | Paste | | Item Weight | 10.1 Ounces | | Liquid Volume | 10.1 Fluid Ounces | | Manufacturer | A P Products | | Manufacturer Part Number | 017-90893 | | Material Type | Silicone | | Model | 017-90893 | | Number of Items | 1 | | Size of liquid in ounces | 10.1 Fluid Ounces | | Surface Recommendation | Versatile, suitable for various surfaces | | Unit Count | 300 Milliliters | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** SIKA - **Colour:** Black - **Item Form:** Paste - **Item Weight:** 10.1 Ounces - **Liquid Volume:** 10.1 Fluid Ounces ## Images ![Sikaflex-221 Multi-Purpose Polyurethane SealantAdhesive, 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) ![Sikaflex-221 Multi-Purpose Polyurethane SealantAdhesive, 10.1 fl oz, Black Permanent Elastic Seal, Sandable Paintable, Non-Corrosive, Bonds to Metal, Plastics More. - Image 2](https://m.media-amazon.com/images/I/71G8vEt0vxL.jpg) ![Sikaflex-221 Multi-Purpose Polyurethane SealantAdhesive, 10.1 fl oz, Black Permanent Elastic Seal, Sandable Paintable, Non-Corrosive, Bonds to Metal, Plastics More. - Image 3](https://m.media-amazon.com/images/I/81QDAJXLKBL.jpg) ![Sikaflex-221 Multi-Purpose Polyurethane SealantAdhesive, 10.1 fl oz, Black Permanent Elastic Seal, Sandable Paintable, Non-Corrosive, Bonds to Metal, Plastics More. - Image 4](https://m.media-amazon.com/images/I/71l8Iq5SN-L.jpg) ![Sikaflex-221 Multi-Purpose Polyurethane SealantAdhesive, 10.1 fl oz, Black Permanent Elastic Seal, Sandable Paintable, Non-Corrosive, Bonds to Metal, Plastics More. - Image 5](https://m.media-amazon.com/images/I/71RRO7yzOdL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ sikaflex is the BOMB *by K***Y on 27 November 2023* Great brand always works ### ⭐⭐⭐⭐⭐ quality product - glad I found it *by D***C on 19 May 2026* used this for a repair that needed waterproof and permanent - this applied on easy and so far 100% resolved issue! I used AI to recommend product off amazon after uploading to AI a photo of the damage and this is what it recommended. ### ⭐⭐⭐⭐⭐ Buena opción *by C***N on 13 September 2025* Me ayudó con la filtración de agua en estas lluvias ## 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.sk/products/294002535-sikaflex-221-multi-purpose-polyurethane-sealantadhesive-10-1-fl-oz](https://www.desertcart.sk/products/294002535-sikaflex-221-multi-purpose-polyurethane-sealantadhesive-10-1-fl-oz) --- *Product available on Desertcart Slovakia* *Store origin: SK* *Last updated: 2026-05-30*