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🔧 Seal it once, seal it right — the pro’s choice for lasting bonds!
Sikaflex-221 is a premium black polyurethane sealant and adhesive that cures quickly to form a durable, elastic, and waterproof bond. Engineered for versatility, it adheres to metals, plastics, ceramics, and coated surfaces while resisting harsh elements like seawater and acids. With NSF approval for drinking water and food environments, it combines professional-grade safety with easy application and fast curing times, making it the go-to sealant for permanent, high-performance sealing and bonding.










| ASIN | B00NW5LWHA |
| Best Sellers Rank | #1,605 in Automotive ( See Top 100 in Automotive ) #10 in Automotive Fillers, Adhesives & Sealants |
| Brand | SIKA |
| Brand Name | SIKA |
| Color | Black |
| Colour | Black |
| Customer Reviews | 4.5 out of 5 stars 2,994 Reviews |
| EU Spare Part Availability Duration | 5 Years |
| Full Cure Time | 3 Hours |
| Full cure time | 3 Hours |
| Included Components | AP Products 017-90893 Sikaflex-221, Black |
| Initial Hardening Time | 1 Hours |
| Initial hardening time | 1 Hours |
| Item Form | Paste |
| Item Type Name | AP Products 017-90893 Sikaflex-221, Black |
| Item Weight | 10.1 Ounces |
| Item weight | 10.1 Ounces |
| Liquid Volume | 10.1 Fluid 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 | Versatile, suitable for various surfaces |
| Unit Count | 10.1 Fluid Ounces |
| Water Resistance Level | Waterproof |
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