--- product_id: 519438244 title: "Sikaflex-221, Gray, multi-purpose sealant/adhesive, polyurethane fast curing sealant, 10.1 fl. oz Cartridge" brand: "sika" price: "178 zł" currency: PLN in_stock: true reviews_count: 7 category: "Sika" url: https://www.desertcart.pl/products/519438244-sikaflex-221-gray-multi-purpose-sealant-adhesive-polyurethane-fast-curing store_origin: PL region: Poland --- # Fast curing 1-C polyurethane Weather & water resistant durability Bonds to wood, metal, ceramic & plastic Sikaflex-221, Gray, multi-purpose sealant/adhesive, polyurethane fast curing sealant, 10.1 fl. oz Cartridge **Brand:** sika **Price:** 178 zł **Availability:** ✅ In Stock ## Summary > 🔧 Seal it fast, seal it strong — the pro’s choice for lasting bonds! ## Quick Answers - **What is this?** Sikaflex-221, Gray, multi-purpose sealant/adhesive, polyurethane fast curing sealant, 10.1 fl. oz Cartridge by sika - **How much does it cost?** 178 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/519438244-sikaflex-221-gray-multi-purpose-sealant-adhesive-polyurethane-fast-curing) ## 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 - • **Ultra-Fast Cure Time:** Get durable seals in just 5-7 days, speeding up your projects without compromise. - • **Eco-Conscious Formula:** Lower VOCs and NSF approval for drinkable water contact—safe for you and the environment. - • **Multi-Purpose Mastery:** Perfect for panel sealing, roofing, flooring, cabinetry, and vehicle repairs—one tube, endless solutions. - • **Universal Bonding Power:** Seamlessly adheres to wood, metals, ceramics, plastics, and more for versatile applications. - • **Weatherproof & Stain Resistant:** Built to withstand harsh weather and resist stains, keeping your work flawless over time. ## Overview Sikaflex-221 is a premium gray polyurethane sealant/adhesive in a 10.1 fl. oz cartridge, designed for fast curing and permanent elastic seals. It bonds reliably to a wide range of materials including wood, metal, ceramics, and plastics, while offering weather resistance, stain protection, and NSF approval for incidental food contact. Ideal for professional-grade sealing and bonding in construction, automotive, and general metalwork. ## Description Sikaflex-221 is a high-quality multi-purpose non-sag 1-c polyurethane sealant/adhesive that cures on exposure to atmospheric humidity to form a durable elastomer. Sikaflex-221 bonds well to a wide variety of substrates and is suitable for making permanent elastic seals of high adhesive strength. Suitable substrate materials are wood, metals, metal primers and paint coatings (2-c systems), ceramic materials and plastics. Review: The best - Best adhesive sealant I've ever used. I've gone through many tubes of this. It's never let me down except when removing it lol! Review: As advertised - Good quality ## Features - Highly elastic and multi-purpose, Sikaflex-221 is suitable for making permanent elastic seals of high adhesive strength. - PERFORMANCE: 1-C formulation. NSF approved for drinkable water and incidental food contact. Can be sanded and painted. - DURABILITY: Resistant to weathering exposure. Lower VOC’s. - SUPPORTS: Bonds well to a wide variety of substrates: wood, metals, metal primers and paint coatings (2-c systems), ceramic materials and plastics. - APPLICATION: Used for the panel sealing and bonding, root base sealing, nacelle sealing, tower sealing, installation & perimeter sealing, general metal construction sealing, metal panels, roofing, flooring bonding, cabinets, flooring and trim. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01GDN4AAI | | Best Sellers Rank | #17,540 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #69 in Silicone Sealers | | Brand | SIKA | | Brand Name | SIKA | | Color | Aluminum Gray | | Colour | Aluminum Gray | | Compatible Material | Fabric | | Container Type | Cartridge | | Customer Reviews | 4.5 out of 5 stars 2,871 Reviews | | Full Cure Time | 5-7 Days | | Included Components | Sealant | | Item Form | Liquid | | Item Package Quantity | 1 | | Item Type Name | Sealant | | Item Weight | 350 Grams | | Item form | Liquid | | Manufacturer | Sika | | Material | Polyurethane | | Material Type | Polyurethane | | Model | 90892 | | Other Special Features of the Product | Stain resistant | | Part Number | 90892 | | Special features | Stain resistant | | Specific Uses For Product | Vehicle | | Specific uses for product | Vehicle | | UPC | 033886005104 | | Unit Count | 10.1 Milliliters | | Volume | 10.1 Fluid Ounces | | Water Resistance Level | Water Resistant | ## Product Details - **Brand:** SIKA - **Colour:** Aluminum Gray - **Full cure time:** 5-7 Days - **Item weight:** 350 Grams - **Liquid volume:** 10.3 Fluid Ounces ## Images ![Sikaflex-221, Gray, multi-purpose sealant/adhesive, polyurethane fast curing sealant, 10.1 fl. oz Cartridge - Image 1](https://m.media-amazon.com/images/I/51dlzDcXfvL.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: Would this work as a sealant on the abs fitting that inserts into the rv poly holding tank outlet and has a hose clamp?** A: Re UV protection. It is widely used on RV roofs so presumably is at least UV resistant. That said, I've found that it lasts only about 3 years on the roof of an RV that sits out in the sun. It is necessary to check it annually and rough up the existing material and add more where cracks have developed. The cracks are in part from expansion and contraction of the underlying parts, but do work their way up through the Sikaflex 221 and result in a leak of the crack is not repaired. I inspect my RV roof annually and usually need to do some repair to the older Sikaflex-221. **Q: Is this suitable for bonding a window into an aluminium u-channel on an rv? also, can i remove it if need be? thank you** A: Precisely the application to which I put the material to use in - sealing RV windshield to aluminum and fibreglass. Has worked flawlessly for 4 years. Easy to remove before cure; extremely difficult to fully remove after cure. **Q: Can someone verify if inventory issue fixed, ordered two blacks and received both white (stamped inside bottom of tube)** A: I have always received the correct color ordered (fulfilled by Amazon). Contact the Seller directly (or whoever is fulfilling an order on their behalf), to confirm inventoried colors. I would request a refund for any product that is not what you ordered. **Q: Do you recommend this for filling in concrete floor cracks? Will it self-level?** A: Not sure on concrete it may hold up but it will not self-level ## Customer Reviews ### ⭐⭐⭐⭐⭐ The best *by D***B on 3 June 2026* Best adhesive sealant I've ever used. I've gone through many tubes of this. It's never let me down except when removing it lol! ### ⭐⭐⭐⭐⭐ As advertised *by A***R on 10 April 2025* Good quality ### ⭐⭐⭐⭐⭐ Very good *by H***M on 3 November 2023* Very good ## Frequently Bought Together - Sika Sikaflex-221, Gray, multi-purpose sealant/adhesive, polyurethane fast curing sealant, 10.1 fl. oz Cartridge - 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.pl/products/519438244-sikaflex-221-gray-multi-purpose-sealant-adhesive-polyurethane-fast-curing](https://www.desertcart.pl/products/519438244-sikaflex-221-gray-multi-purpose-sealant-adhesive-polyurethane-fast-curing) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-07-07*