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🔧 Seal it once, seal it right — the pro’s choice for lasting bonds!
Sikaflex-221 is a professional-grade, one-component polyurethane sealant and adhesive offering permanent elastic seals. It bonds reliably to metals, plastics, ceramics, and coatings, resists aging and harsh elements, and is NSF approved for use in drinking water systems. Its sandable, paintable formula and easy cartridge application make it ideal for durable, clean finishes in industrial and home projects.















| ASIN | B00NW5LWHA |
| Best Sellers Rank | #982 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #4 in Polyurethane Adhesives |
| Brand Name | SIKA |
| Color | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (3,007) |
| 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 |
| Part Number | 90893 |
| Surface Recommendation | Metal, Wood, Glass |
| Unit Count | 10.1 Fluid Ounces |
| Water Resistance Level | Waterproof |
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