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🔗 Seal it once, seal it right — the pro’s choice for permanent bonds!
Sika Sikaflex-221 is a premium aluminum gray polyurethane sealant and adhesive designed for permanent elastic seals across multiple substrates including metal, plastic, and ceramics. Its age-resistant, non-corrosive formula withstands harsh elements like seawater and acids, while being NSF-approved for safe use in drinking water and food environments. Packaged in easy-to-use 10.1 fl. oz cartridges (24 per pack), it offers professional-grade performance with sandable and paintable finish options.










| Asin | B0CRRZW1VM |
| Best Sellers Rank | #960 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #11 in Urethane Adhesives |
| Brand Name | SIKA |
| Color | Aluminum Gray |
| Customer Reviews | 4.6 4.6 out of 5 stars (3) 4.6 out of 5 stars |
| Global Trade Identification Number | 10033886005101 |
| Included Components | Sealant |
| Item Form | Liquid |
| Item Weight | 0.27 g |
| Liquid Volume | 10.3 fluid ounces |
| Manufacturer | Sika |
| Material Type | Polyurethane |
| Model | 90892 |
| Number Of Items | 24 |
| Part Number | 90892 |
| Surface Recommendation | Metal, Wood, Glass |
| Unit Count | 24 Count |
| Water Resistance Level | Water Resistant |
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