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โ Seal the deal with speed and strength โ your boatโs best defense!
SIKA Sikaflex-291 is a black, one-component polyurethane marine adhesive and sealant designed for durable, elastic, and vibration-resistant bonds. It cures rapidly upon moisture exposure, forming a waterproof seal that withstands fresh and saltwater, fuels, and oils. Compatible with multiple substrates including wood, metal, and plastics, it can be sanded and painted for a professional finish. Packaged in a 10.1 fl. oz cartridge, it meets ISO and IMO standards, making it a trusted choice for marine construction and repairs.















| ASIN | B00C501KD4 |
| Best Sellers Rank | #5,711 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #11 in Polyurethane Adhesives |
| Brand Name | SIKA |
| Color | Black |
| Compatible Material | Aluminum |
| Container Type | Cartridge |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,319) |
| Full Cure Time | 24 hours |
| Global Trade Identification Number | 00033886005272 |
| Included Components | Sealant |
| Item Form | Paste |
| Item Package Quantity | 1 |
| Item Type Name | Adhesive |
| Item Weight | 10.1 ounces |
| Manufacturer | Sika USA |
| Material Type | 1-C polyurethane |
| Model | 90923 |
| Number of Pieces | 1 |
| Other Special Features of the Product | Water Resistant |
| Part Number | 017-90923 |
| Specific Uses For Product | Marine |
| UPC | 033886005272 |
| Unit Count | 10.1 Fluid Ounces |
| Viscosity Level | High |
| Volume | 10.1 fluid ounces |
| Water Resistance Level | Water Resistant |
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