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🔗 Seal it once, seal it right — the pro’s choice for lasting bonds!
Sika Sikaflex-221 is a professional-grade, one-component polyurethane sealant and adhesive designed for versatile bonding and sealing across metals, plastics, ceramics, and coated surfaces. It offers superior resistance to aging, seawater, and corrosive substances, cures quickly with moisture exposure, and is NSF-approved for safe use in drinking water and food production systems. Packaged in an easy-to-use cartridge, it ensures precise application and permanent waterproof seals ideal for internal and external repairs.










| 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 |
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