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⚓ Seal the deal fast—marine strength that keeps you afloat!
Sikaflex-291 is a professional-grade, fast-curing polyurethane marine adhesive and sealant trusted by boat builders. It bonds securely to multiple surfaces including gelcoat, fiberglass, metal, and wood, offering superior resistance to water, chemicals, and oils. Suitable for above and below waterline use, it cures quickly to a durable, paintable finish and meets NSF and USDA standards for incidental food contact.










| ASIN | B01GPIXX5Y |
| Best Sellers Rank | #135,425 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #713 in Hardware Sealers |
| Brand Name | SIKA |
| Color | White |
| Compatible Material | Metal |
| Container Type | Cartridge |
| Customer Reviews | 4.4 4.4 out of 5 stars (633) |
| Included Components | Sealant |
| Item Form | Paste |
| Item Package Quantity | 1 |
| Item Type Name | Adhesive |
| Item Weight | 300 Grams |
| Manufacturer | Sika USA |
| Material Type | 1-C polyurethane |
| Model | 90919 |
| Number of Pieces | 1 |
| Part Number | 90919 |
| UPC | 033886005258 |
| Unit Count | 298.69 Milliliters |
| Volume | 10.1 Fluid Ounces |
| Water Resistance Level | Water Resistant |
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