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⚓ Seal it fast, seal it right — the marine pro’s secret weapon!
Sikaflex-291 is a professional-grade, fast-curing polyurethane marine adhesive and sealant designed for superior elasticity and vibration resistance. Ideal for boats and marine vessels, it bonds strongly to fiberglass, metal, and wood, resists water and harsh chemicals, and cures quickly to minimize downtime. NSF and USDA approvals make it safe for incidental food contact, making it the go-to choice for durable, reliable marine sealing.















| ASIN | B01GPIXX5Y |
| Best Sellers Rank | #6,298 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #36 in Silicone Adhesives #61 in Adhesive Caulk #114 in Industrial Sealants |
| Brand Name | SIKA |
| Color | White |
| Compatible Material | Fiberglass, Metal, Wood |
| Container Type | Cartridge |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,328) |
| Included Components | 10.1 fl oz Cartridge |
| Item Form | Gel |
| Item Package Quantity | 1 |
| Item Type Name | Adhesive |
| Item Weight | 300 g |
| Manufacturer | Sika USA |
| Material Type | 1-C polyurethane |
| Model | 90919 |
| Number of Pieces | 1 |
| Other Special Features of the Product | Fast Curing |
| Part Number | 90919 |
| Specific Uses For Product | Boating |
| Tensile Strength | 260 kips_per_square_inch |
| UPC | 033886005258 |
| Unit Count | 10.1 Fluid Ounces |
| Viscosity Level | Medium |
| Volume | 10.1 fluid ounces |
| Water Resistance Level | Water Resistant |
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