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⚓ Seal the deal with speed and strength – your boat’s best defense!
Sikaflex-291 is a professional-grade, fast-curing polyurethane marine adhesive and sealant designed for superior elasticity and vibration resistance. Compatible with fiberglass, metal, and wood, it offers exceptional durability against water, chemicals, and oils, making it ideal for above and below waterline applications. NSF and USDA approved, this 10.1 fl. oz cartridge is trusted by boat builders for reliable, long-lasting seals.















| ASIN | B01GPIXX5Y |
| Best Sellers Rank | #6,070 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #30 in Silicone Adhesives #47 in Adhesive Caulk #89 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 (1,335) |
| 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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