--- product_id: 18443420 title: "SIKA Sikaflex-221 Multi-Purpose Polyurethane Sealant/Adhesive, 10.1 fl oz, White – Fast-Curing, Permanent Elastic Bond, Weather-Resistant, Sandable & Paintable" brand: "sika" price: "$38.70" currency: USD in_stock: true category: "Sika" url: https://www.desertcart.us/products/18443420-sika-sikaflex-221-multi-purpose-polyurethane-sealant-adhesive-10-1 store_origin: US region: United States of America --- # Fast-curing in ~1 hour Weather & seawater resistant Permanent elastic bond SIKA Sikaflex-221 Multi-Purpose Polyurethane Sealant/Adhesive, 10.1 fl oz, White – Fast-Curing, Permanent Elastic Bond, Weather-Resistant, Sandable & Paintable **Brand:** sika **Price:** $38.70 **Availability:** ✅ In Stock ## Summary > 🛠️ Seal it once, seal it right — the ultimate all-in-one adhesive solution! ## Quick Answers - **What is this?** SIKA Sikaflex-221 Multi-Purpose Polyurethane Sealant/Adhesive, 10.1 fl oz, White – Fast-Curing, Permanent Elastic Bond, Weather-Resistant, Sandable & Paintable by sika - **How much does it cost?** $38.70 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/18443420-sika-sikaflex-221-multi-purpose-polyurethane-sealant-adhesive-10-1) ## 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 - • **Finish Like a Pro:** Sandable & paintable for seamless, flawless results every time - • **Durability That Lasts:** Age-resistant formula stands up to harsh elements & chemicals - • **Effortless Application:** Ready-to-use cartridge fits all standard guns for precision and speed - • **Versatile Bonding Power:** Bonds metals, plastics & ceramics with professional-grade strength - • **Safe for Sensitive Environments:** NSF-approved for drinking water & food production safety ## Overview SIKA Sikaflex-221 is a fast-curing, one-component polyurethane sealant and adhesive that delivers permanent elastic bonds across metals, plastics, and ceramics. Its age-resistant, waterproof formula withstands seawater, acids, and caustic solutions, making it ideal for both indoor and outdoor use. NSF-approved for drinking water and food production, it comes in a convenient cartridge for precise application and offers sandable, paintable finishing for professional-grade results. ## 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 white, 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 | B00O9VFLRS | | Best Sellers Rank | #968 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #4 in Polyurethane Adhesives #11 in Urethane Adhesives | | Brand | SIKA | | Brand Name | SIKA | | Color | White | | Customer Reviews | 4.6 out of 5 stars 2,978 Reviews | | Global Trade Identification Number | 00338860050980 | | Included Components | AP Products 017-90891 Sikaflex-221, White | | Item Form | Paste | | Item Type Name | AP Products 017-90891 Sikaflex-221, White | | Item Weight | 10.1 Ounces | | Liquid Volume | 10.1 Fluid Ounces | | Manufacturer | SIKA | | Material Type | Polyurethane | | Model | 017-90891 | | Number of Items | 1 | | Part Number | 0911.1270 | | Surface Recommendation | Roof, Vent, Pipe | | UPC | 338860050980 | | Unit Count | 10.1 Fluid Ounces | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** SIKA - **Color:** White - **Item Form:** Paste - **Item Weight:** 10.1 Ounces - **Liquid Volume:** 10.1 Fluid Ounces ## Images ![SIKA Sikaflex-221 Multi-Purpose Polyurethane Sealant/Adhesive, 10.1 fl oz, White – Fast-Curing, Permanent Elastic Bond, Weather-Resistant, Sandable & Paintable - Image 1](https://m.media-amazon.com/images/I/51dlzDcXfvL.jpg) ## Available Options This product comes in different **Color, Style** options. ## Frequently Bought Together - Sika Sikaflex-221, White, multi-purpose sealant/adhesive, polyurethane fast curing sealant, 10.1 fl. oz Cartridge - Dicor 501LSW-1 HAPS-Free Self-Leveling Lap Sealant for horizontal surfaces - 10.3 Oz, White, 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.us/products/18443420-sika-sikaflex-221-multi-purpose-polyurethane-sealant-adhesive-10-1](https://www.desertcart.us/products/18443420-sika-sikaflex-221-multi-purpose-polyurethane-sealant-adhesive-10-1) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-15*